APPLE I[' COM PATIB LE

ALFProductslnc. 1448 Estes Denver, CO 80215 MUSIC ENTRY SYSTEM

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song and play it. Since mistakes can paddles" which resemble the control- A STAR IS BORN be corrected easily and without diffi- lers for the popular "pong" television Early in 1979, ALF Products unleashed culty, there's no need for practice; an games. Each paddle has a knob and a a new music entry system on an un- entered song can be played time and button. Using these simple game suspecting personal-computer world. time again, flawlessly, at any tempo. paddles, and the Apple's built-in type- The heart of this new system was a Yet that's not all. lmprovements, chang- writer-like keyboard, you quickly and very sophisticated program named es, and even whole new voices can be easily select the various functions ENTRY. Taking a bold step into unique added at any time. available in the ENTRY program. innovations, ALF showed that music THE APPLE II COMPUTER programming could be done more JUST LIKE SHEET MUSIC personal easily than ever before. The Apple ll computer is the Programming a song with ENTRY is most popular internally-expandable amazingly easy. The Apple's television ALF: THE LEADER IN home computer available today. That's display shows the familiar staffs of COMPUTER MUSIC why ALF chose to create ENTRY for conventional sheet music. Across the Today, ALF's ENTRY program is being use with the Apple. Sold at hundreds bottom of the display the various notes used by thousands of computer music of computer stores across the U.S. are shown. Using the two paddles, you enthusiasts, bringing music into the and around the world, the Apple ll is just select the note from the "menu" at fine lives of many who previously could not ideal not only for use with ALF's the bottom of the display, and position quality play a musical instrument. ln just a few music , but for a a small circle on the musical staffs at minutes, even someone who's never variety of other functions, too. the position the note appears in the played an instrument can program a The Apple ll computer has two "game sheet music. When you press the

APPLE ll is a trademark of Apple Computer Inc paddle button, ENTRY draws the note instantly displayed. When you enter SPECIFICATIONS on the screen and simultaneously notes, ENTRY will automatically make Memory consumption: 20K bytes (re- plays the pitch for audible verification. the proper notes sharp as indicated by quired only when in use). You watch the song you're program- the key signature. You don't have to Maximum number of monophonic ming appear in the display note by remember which notes are sharp, or voices (parts): 9. note, in virtually the same notation as doanything special; ENTRYwill handle your sheet music. the key signature just like a professional Pitches available (without transpose); musician would. What if the song 63 half-steps (the harpsichord range AUTOMATIC MEASURE BARS changes to a key with 2 flats? Type plus 2). AND NUi'BERS KEY:2F and press return. Notes en- Pitches available (with transpose): 192 Although you'll notice most mistakes tered in measures before the new key quarter-steps (including the immediately when the pitch is played signature remain in the old key; and range). (and then just use "backspace" to notes entered in measures after the Standard note durations (without tie): enter the correct note overthe mistake), new key are created with the new key. 20 (whole through sixty{ourth, plus you wouldn't notice mistakes made in Key changes appear in the display in dotted (except sixty-fourth) and trip- the length of the note. Musicians write standard notation, and you can have let). as many changes as you like. music so that each measure contains Standard note durations (with tie): the same total length, and the end of A GREAT SELECTION OF 13,107 (as above, plus any com- each measure is indicated by avertical NOTE DURATIONS binations). line called a "bar". You don't have to note (including ENTRY allows the use of nearly all Total durations non- enter these bars, because ENTRY will standard): 65,535 automatically compute the length of standard note durations. From whole each measure and draw bars at the notes down tosixty{ourth notes; they're Rest durations: same as note dura- proper places. This not only eliminates all there. Dotted notes, triplets, tied tions above. the inconvenience of entering the notes - all available in a simple and Song data save and load: from cas- many measure bars, it provides a straightforward manner. Need five sette tape and/orApple DISK ll. quarter simple check. lf the bars appear in the notes in the space of a single Measure bars: automatic during entry, display at the same places they note?Justtype in a LENGTH command with one to nineteen counts per appear in the sheet music you're to get virtually any duration you need. measure and whole to sixteenth entering, the note lengths are probably (lt's all available for rests, too.) Have note per count. Changeable at any correct. notes that start in one measure but end point. up in another?Whether you enter them It's ALF's meticulous attention to the Key signatures: notes are altered auto- as tied notes, or just enter the full smallest detail, not only in this partic- matically during entry, with one to duration, ENTRY will automatically ular instance but throughout the ENTRY six sharps or flats, plus key C. show them as being tied across the of program, that makes this system so Changeable at any point. measure bar. popular. ENTRY doesn't stop at auto- lnsert mode: allows insertion of notes, matic measure bars. Each measure is A GREAT SELECTION OF rests, and commands. automatically numbered, by ENTRY, PITCHES, TOO Delete: single or multiple notes, rests, and the number of the current measure get -note and commands. is constantly displayed. With a few You d irect access to the full 61 keystrokes, you can use the MEASURE harpsichord range. Using TRANS- Subroutines: up to 100 subroutines, POSE, you can play any note within a command to have any measure you've callable from any or all parts simul- full B octave range (which includes entered displayed on the screen. Any the taneously. full standard piano range). Quarter- following measures which fit on the Editing commands: DEL(single tones (the notes between piano notes) delete). display are shown too. INS (insert mode), TlE, cursor left, are available with TRANSPOSE, too. cursor right, DELETE (multiple), Accidentals (notes which are indicated AUTOMATIC KEY AND TIME EDIT, GOTO, MEASURE, NEW, individually as sharp, flat, or natural in SIGNATURES PART, SPEED, STEREO, and SUB- the sheet music)can easily be entered ROUTINE. Need a time signature of 6/8? Just type by selecting the standard musical TIME:6/8 and press return, and ENTRY notation from the "menu" on the Commands stored in music data: AT- will instantly draw a 6/8 on the display. screen. And of course accidentals are TACK, CALL, DECAY, GAP, KEY, Measure bars in the fol lowing measures automatically applied to the pitch all QUARTER, RELEASE, SUSTAI N, will occur at the proper points for the through the rest of the measure, as re- TEMPO, TIME, TRANSPOSE, and selected time signature. Have a song quired by standard notation. VOLUME. where the time signature keeps chang- Other commands: INTEGER (returns ing? No problem. Type in a new time AND MANY OTHER to BASIC), LOAD, and SAVE. signature whenever you like. They're IMPORTANT FUNCTIONS Envelope features: attack rate, decay stored in the song data along with the Subroutines (for repeated sections or rate, sustain level, release gap notes, rests, and other parameters; rate, rounds), envelope and volume control, size between notes, and volume and they're displayed along with the stereo positioning, saving and loading level. 65,536 settings each. notes and rests in standard musical songs (from cassette tape or disk), notation. Monitor ROM compatibility: with both inserting and deleting notes, color regular and Auto-Start ROMs. you too? playback display, transposing sec- Key signatures changing on BASIC compatibility: Again, ENTRY is written to do the work tions, tempo control, entering addi- with lnteger BASIC and BASIC. for you. Let's say you have a key signa- tional voices there's too much to go Applesoft ture with 3 sharps. Just type KEY:3S into in detailhere.- And pre-programmed and press return. Three sharps are songs are available, too. O r98o ALF APPLE ][' COMPATIB LE

ALFProductslnc. 1448 Estes Denver, CO 80215 MUSIC

A COMPLETE LOW COST SYNTHESIZER FOR THE APPLE It COMPUTER amplifier were used on the synthesizer. SOUND QUALITY IS "THE when your disk drive is making its BOTTOM LINE'' largest demands on the power supply HOW ABOUT STEREO? It doesn't matter how brilliantyourmas- and bus, you won't hear it through the The synthesizer has only one output, terpiece is if there's noise in the synthesizerat any normal amplif ication so with one unit you get a mono signal. synthesizer output. That's why ALF's level. The Apple Music Synthesizer is However, for those applications where Apple Music Synthesizer is designed designed to be connected to your two units are required the two outputs with the same attention to detail as a home stereo system. Just plug the can be connected to a stereo amplifier fine stereo system. The flawless audio standard RCA-type phono plug cable (or receiver) for separate "left" and output contains no audible noise; it (included) into the aux, tuner, tape "right" signals. Or a simple Y adapter easily rivals even the best conventional play, or similar jack on your amplifier or (available at any stereo store) can be synthesizers, which sell for thousands receiver. You'll get the best sound your used for mono. Special circuitry on the of dollars more. Located in the heart of stereo system can provide, without the card allows three units to be connected a complex digital computer, a noise- noise and distortion that might be to a stereo system with "left", "right", free signal is no trivial task. But even present if an inexpensive "on-board" and "middle" (both) signals.

ENTER THE FASCINATING FIELD OF COMPUTER-CONTROLLED MUSIC THREE VOICES ON A SINGLE CARD (note loudness contours) by advanced Apple compatibility: plugs directly into Each synthesizer is really three sepa- programs such as ENTRY, the large any Apple expansion slot. Designed rate independent monophonic synthe- number of settings available assures a to meet allApple recommendations. sizers. "Monophonic" means they can variety of envelopes and smooth fade Software requires multiple units to play any available pitch, but only one outs. be in adjacent slots (when more pitch at a time. This is similar to con- than one synthesizer is used). ventional instruments like flutes, trum- ADVANCED SOFTWARE Frequencies: three independent pitch pets, or clarinets which also only play generators, each produces any fre- The synthesizer is supplied with BASIC quency is one note at a time. Having three compatible software (and sample 1782OOO|D Hz where D allows you an integer from 32 to 65536. synthesizers on each card songs). Sheet music can be entered play would require to a song which using the ENTRY program, and played Volume levels: three volume control instruments playing at three such back using either ENTRY or PLAY. The circuits, each with 256 settings with synthesizer be once. Since the can INTRODUCTION program gives a an exponential range over 78 dB. quality to changed from one sound brief demonstration of synthe- : square. Variable duty cycle instantly, you could play a another sizer terminology. The PERFORM pro- pulse waves available on one or two is played with many song that normally gram is used to play songs from your channels when frequency is con- only three instruments, but of course BASIC programs. CHROMA can trolled by third channel. play own instruments can simultaneously. be used from a BASIC program for you can play a three note piano Relative Enjoyment Factor (REF): typi- Or, creating complex sounds. lf you like to you need more than three cally exceeds 82. chord. lf create your own programs, the Own- pitches, units Software supplied: ENTRY, PLAY, lN- simultaneous additional er's Manual gives complete instruc- Nine simultaneous TRODUCTION, PERFORM, CHRO- can be added. tions on programming the synthesizer played MA, DISCO (continuous playback voices can be using three syn- directly. thesizers. for DISK ll systems), and 5 sample songs. ACCURATE, STABLE PITCHES APPLE MEMORY REQUIREMENTS Frequencies (pitches) are produced When run, ENTRY uses the lowest 20K ORDERING INFORMATION with a crystal-controlled digital circuit of the Apple's memory. On a 48K com- Order number 10-5-16, Apple Music which never requires is tuning and puter using cassette tape, the remain- Synthesizer. lncludes circuit card, affected by temperature scarcely and ing 2BK of memory is available for the audio output cable, software,and humidity changes. The entire piano song being entered. Each note or owner's manual. $265.00- with Hz scale, standard A:440 tuning, function (such as KEYoTTIME) requires Option 1: lnteger & Applesoft BASIC is accurately created with all pitches 3 bytes of memory. (28K equals 28 "cent" disk. within 2 cents. (A is 1/'100 of the times 1024, which is 28672, bytes of Option 2: lnteger BASIC cassette. range between two piano notes.)This memory. 28672 divided by 3 equals is excellent forvirtual ly any application. over 9,500 notes.) Some additional Even quarter-tones, the notes between memory is consumed for each part ACCESSORTES piano notes (including both white and (voice) and subroutine. Apple's DISK Order number 13-2-3, Applesoft tape. black keys)within the piano range are ll consumes 10.5K of memory, leaving $14.95. highly accurate. Over 65,000 different 17.5K available for song data on a 48K Order number 10-'l-9, Timing Mode pitches can be produced, from the system (over 5,900 notes). l/O Extender. $18.00. lowest piano note to well above human (various numbers) ALF ALBUM series hearing. SPECIFICATIONS of pre-programmed songs on tape AMPLE VOLUME SETTINGS Channels (independent monophonic or disk. $14.95. each. There are three volume control circuits voices): 3 per synthesizer. Order number 11-1-6, owner's manual (one for each voice) with 256 settings Audio output: standard RCA-type (for evaluation). $7.00. each. Since they are arranged in an phono plug cable. Connects to vir- exponential fashion, the 256 levels tually any audio input except phono- function as well as 8,'160 levels ar- graph inputs. Amplifier, stereo sys- ranged in a simple linear lashion tem, or receiver plus speaker is would. the volume control cir- required. Stereo outputs available Order from your local Apple dealer. Since .Suggested cuitry is used to create envelopes when 2 or 3 units are used. U.S. list price.

"Apple ll" is a trade mark of Apple Computer lnc. @ Copyright'1980 ALF Products lnc.