Light Ground
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Marc Sabat Light Ground an 11-limit modulation for 2 tanpuras in changing scordature or 2 harpsichords in just intonation PLAINSOUND MUSIC EDITION Light Ground (2014/15) an 11-limit modulation for 2 tanpuras in changing scordature or 2 harpsichords in just intonation inspired by work with Catherine Christer Hennix and Marcus Pal commissioned by Mareike Lee for Ivo and Kuno This piece references a line of work exploring the possibilities of just intonation which has evolved out of the teaching of Pandit Pran Nath, also manifested in numerous compositions by La Monte Young, Terry Riley, Catherine Christer Hennix as well as various younger musicians. In Berlin, I came to know the tamburas of Pandit Pran Nath in Catherine Christer Hennix’s studio whilst assisting Marcus Pal in making recordings of her ongoing composition for these two instruments tuned pa-sa-sa-SA and played at once. Astounded by the rich variety of spectral interactions of the instruments, which are normally heard in an accompanying role while producing the harmonic drone in Indian music, I was inspired to create a new piece for this wonderful instrumentation. Over a number of years, in conversations with my colleague and friend Jeremy Woodruff we would discuss the possibility of composing harmonic “modulations” of the traditionally fixed drone in Indian music. Might it be possible, we wondered, to make harmonic changes (movements between gamuts of tones based on different fundamentals) in a way which might also enable the development of new Indian raga forms? Could this also be heard from other listening perspectives as an interesting music form? I began to consider the most commonly used consonant tambura tunings (sa- ma, sa-pa, sa-ni). I found a way of harmonically relating two very distant patterns a quarter-tone apart by considering just intonation ratios from a common subaudio fundamental (2 Hz). The composition is a gradual transformation between these two drones. I imagine several possible realisations of this piece: as a recording played over multiple loudspeakers distributed in a large space, or in a network of connected rooms. Each bar of the music, and each of the two tamburas in changing scordature, is recorded independently, cycling its repeating pattern for a long time. These are then edited into a sequence of gradually changing harmonies. In a larger setting each pair of loudspeakers might reproduces a slow loop through the score, offset from the next pair by one or more bars. In this manner, the entire piece — one “dissonant” harmony beating at 120 bpm — may be always sounding all at once, and by walking past the loudspeakers, one may play/hear through the piece as a modulation between two consonant drone tunings, running the harmonic changes forwards or backwards in time. Alternately, a live version performed by 4 tanpurists and 22 instruments distributed in a space is possible, or a faster version for two harpsichords retuned as indicated in the score. Berlin, November 2014/August 2015 Light Ground an 11-limit modulation for two deep tanpuras in changing scordature or for two harpsichords Moderé, un peu inégal Marc Sabat plucking in the ordinary direction (pa-sa-sa-SA) û û û Hz : 128 û 64 96 112 each bar = ca. 1' simile, ad lib. ù ù ù ù + Tanpura ù ù + ù + ù (I) ? ™ ™ œ œ œ œ ™ ™ œ œ œ ™ ™ œ œ ™ ™ œ ™ í ™ ìì ™ 5o ™ 5o 5o 5o ™ ™ìììì ™ 5o 5o 5o ™ìììì ™ 5o 5o ™ìììì ™ <5fœ 5o ™ìì û -38 û û -365oœ û 5oœ A +31 -385o+œ indicates a change of pitch5oœ 5oœ Hz : 64 64 64 32 48 32 ? √ 16 Difference Tones œ œ œ 5o œ ? œ 5oœ › 5o œ ƒ 5o { plucking in the reverse direction (SA-sa-sa-pa) û û Hz : 128 û 64 96 112 each bar = ca. 1' simile, ad lib. ù ù ù + Tanpura ù ù + ù + ù (II) ? ™ ™ œ. œ œ œ. ™ ™ œ œ œ ™ ™ œ œ ™ ™ ÍÍÍÍÍÍÍÍÍÍÍÍí ™ ìì ™ 5o 5o 5o 5o ™ìììì ™ 5o 5o 5o ™ìììì ™ 5o 5o ™ìììì ™ <5fœ û û û 5oœ û A +31 5o+œ indicates a change of pitch5oœ 5oœ stems down = lower manual stems up = upper manual û û û each bar = ca. 1'û simile, ad lib. ù ù ù Harpsichord ù + + + ? ù ù ù ù (I) ìì ™ œ. œ œ œ. ™ìììì ™ œ œ œ ™ìììì ™ œ œ ™ìììì ™ œ œ ™ìì { û -38 û -38 û -36 œ û œ A +31 +œ indicates a change of pitch œ œ stems down = lower manual stems up = upper manual û û each bar = ca. 1'û simile, ad lib. ù ù Harpsichord ù + + + ? ù ù ù ù (II) ÍÍÍÍÍÍÍÍÍÍÍÍí ™ ìì ™ œ. œ œ œ. ™ìììì ™ œ œ œ ™ìììì ™ œ œ ™ìììì ™ œ { û -38 û -38 û -36 œ û +œ indicates a change of pitch œ œ A +31 û û û 88 û 132 66 110 +14 +16 +16 ù ù ù + ù + + + T I ? ù ù ù ù ìì ™ œ 5oœ ™ìììì ™ œ oœ ™ìììì ™ œ oœ ™ìììì ™ oœ ™ìì ™ <5f ™ ™ <5f ™ ™ <5f ™ ™ nœ ™ û oœ û oœ û oœ û oœ 5oœ 5oœ oœ oœ 62 68 64 68 62 68 62 68 64 46 48 48 48 36 40 46 44 46 40 3640 36 40 36 40 32 30 32 24 24 30 30 24 20 20 24 20 22 24 ? 16 16 16 18 18 DT œ œœ b œ bœœ bœœ œ :5g œ _55o œœ #œ #œ ? œ œ 35wœœ œœ oœ œœ 5œ 5oœœ œ œ SA œ œ 5 œ œ œ 5o œ œ œ o œ œ › œ 5œ œ 5oœ subaudio Hz : -8 8- 8- 14- 14- { 4 4 8 8 2 4 4 2 2 û û û û 110 ù ù ù ù + T II ? ™ ù™ ™ ù™ ™ ù™ ™ ù™ 5oœ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ œ 5oœ û û û û n 5oœ û û û F +14 û C +16 C +16 A +0 ù ù ù + ù + + + H I ? ù ù ù ù ìì ™ œ œ ™ìììì ™ œ bœ ™ìììì ™ œ bœ ™ìììì ™ bœ bœ ™ìì { û bœ û bœ û bœ bœ û bœ bœ û û û û œ œ A +0 ù ù ù ù + H II ? ù ù ù ù œ œ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ bœ { û û û û œ 2 û û û û ù ù ù ù + T I ? ù ù ù ù ìì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ oœ ™ìì û û û û oœ oœ 66 66 oœ 44 62 44 66 66 36 40 36 44 44 30 30 22 22 ? 22 18 22 DT œ œ œ œ œ oœ œ œ œ ? œœ œ SA › œ œ œ œ œ 14- 14- { 8 8 4 û û û û 66 132 88 +16 +16 +14 ù ù ù ù + + + + T II ? ù ù ù ù 5oœ ™ìììì ™ 5oœ ™ìììì ™ oœ ™ìììì ™ oœ ™ìììì ™ œ ™ ™ nœ œ ™ ™ nœ œ ™ ™ nœ ™ ™ 5o û 5o û 5o û oœ û oœ û û û oœ û oœ oœ oœ ù ù ù ù + H I ? ù ù ù ù ìì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ bœ ™ìì û û û ™ û ™ ™ ™ ™ ™ ™ bœ bœ ™ { û C +16 û û û bœ C +16 + ù ù ù ù + F +14+ + H II ? ù ù ù ù œ ™ìììì ™ bœ œ ™ìììì ™ bœ bœ ™ìììì ™ bœ bœ ™ìììì ™ { œ û bœ œ û bœ œ û bœ bœ û bœ bœ û û û û ù ù ù + ù + + + T I ù ù ù ù ? ìì ™ œ ™ìììì ™ ™ìììì ™ œ ™ìììì ™ œ ™ìì ™ œ œ o œ ™ ™ œ œ œ œ ™ ™ œ o œ œ ™ ™ œ o œ ™ û o o o û o o o o û o o o û o o œ 66 66 o 44 44 44 44 ? 22 √ 22 DT œ œ ? œ œ œ oœ /0 o œ œ û û û › û o ƒ ù ù ù { ù + + + + T II ? ù ù ù ù oœ ™ìììì ™ oœ ™ìììì ™ ™ìììì ™ oœ ™ìììì ™ oœ oœ û oœ oœ oœ û oœ oœ oœ oœ û oœ oœ oœ û û û û û oœ + ù ù ù + ù + + H I ù ù ù ù ? ìì ™ bœ ™ìììì ™ ™ìììì ™ bœ ™ìììì ™ bœ ™ìì û û û ™ û ™ ™ ™ ™ ™ ™ ™ { û bœ bœ bœ û bœ bœ bœ bœ û bœ bœ bœ û bœ bœ bœ ù ù ù ù + + + + H II ? ù ù ù ù bœ ™ìììì ™ bœ ™ìììì ™ ™ìììì ™ bœ ™ìììì ™ bœ { bœ û bœ bœ bœ û bœ bœ bœ bœ û bœ bœ bœ û bœ û û û û ù ù ù + ù + + + T I ? ù ù ù ù ìì ™ oœ ™ìììì ™ oœ ™ìììì ™ 5oœ ™ìììì ™ 5oœ ™ìì ™ nœ ™ ™ œ nœ ™ ™ œ nœ ™ ™ œ nœ ™ û oœ û 5o û 5o û 5o oœ oœ oœ 5oœ 68 62 66 62 66 46 44 66 44 40 44 3644 40 36 36 22 30 30 24 30 ? 22 18 22 18 22 DT œ œ œ œœ œ œ _55o œ œ :5g œ ? œœ 35wœœœ 5oœ 5 œ œ 5 œ SA œ œ œ 5o œœ œ › 5oœ 14- 14- 14- 8 8 8 û û û { û 4 4 2 ù ù ù ù + T II ? ù ù ù ù ™ìììì ™ oœ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ ™ nœ ™ ™ ™ ™ ™ ™ oœ oœ û oœ û û û û û û oœ û ù ù ù + ù + + + H I ù ù ù ù ? ìì ™ bœ bœ ™ìììì ™ bœ bœ ™ìììì ™ œ bœ ™ìììì ™ œ bœ ™ìì û û û ™ û ™ ™ ™ ™ ™ ™ ™ { û bœ bœ û nœ bœ û œ bœ û œ œ ù ù ù ù + H II ? ù ù ù ù ™ìììì ™ bœ bœ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ { bœ bœ û bœ bœ û û û 3 û û û û ù ù ù + ù T I ? ù™ œ ™ ù™ ™ ù™ ™ ù™ ™ ìì ™ 5o <5fœ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìì û 5oœ û û û 5oœ 68 68 62 68 64 48 64 6246 48 46 40 48 4036 36 40 36 40 64 30 30 32 24 32 48 24 24 20 24 32 20 16 ? 18 16 20 16 16 DT b œ b œ œ œ œ œ e œ œ #œœ œ#œœ 5o œ œ œ ? œ 5o œ œ œ œ œ SA œ œ 5o œ œ › 5œ œ œ œ œ œ 14- 5o-8 -8 -8 { 8 4 4 4 2 û û û 2 û ù ù ù ù + + + T II ? ™ ù™ œ ™ ù™ œ ™ ù™ œ ™ ù™ œ ‘ ™ìììì ™ o <5fœ ™ìììì ™ o <5fœ ™ìììì ™ 5o <5fœ ™ìììì ™ 5o û oœ û oœ û oœ û oœ 5oœ 5oœ 5oœ û û û û ù ù ù + ù H I ù ù ù ù ? ìì ™ œ ™ìììì ™ ™ìììì ™ ™ìììì ™ ™ìì { ™ œ nœ ™ ™ ‘ ™ ™ ‘ ™ ™ ‘ ™ û û û û û œ û û û ù ù ù ù + + + H II ? ù ù ù ù ‘ ™ìììì ™ bœ nœ bœ ™ìììì ™ bœ œ bœ ™ìììì ™ œ œ bœ ™ìììì ™ œ { û bœ û œ û œ û œ û û continue on to next bar without pause ù + ù + T I ? ù ù ìì ™ 5oœ 5oœ ™ìììì ™ 5oœ 5oœ 5oœ ™ìì û 5oœ û 5oœ 5oœ 64 64 32 ? DT œ œ ? œ › û û { û ù ù + ù + + T II ? ™ ù™ œ œ ™ ù™ œ œ œ ™ <5fœ ™ìììì ™ 5o 5o ™ìììì ™ 5o 5o 5o ™ìì 5oœ û 5oœ û 5oœ 5oœ û û continue on to next bar without pause ù + ù + H I ù ù ? ìì ™ œ œ ™ìììì ™ œ œ œ ™ìì { ™ œ ™ ™ ™ û û û û œ û œ ù ù + ù + + H II ? ù ù œ nœ ™ìììì ™ œ œ œ ™ìììì ™ œ œ œ ™ìì { û œ û œ û û û û ù ù ù + ù + + + T I ? ù™ œ œ œ œ ™ ù™ œ œ œ ™ ù™ œ œ ™ ù™ œ ™ ìì ™ 5o 5o 5o 5o ™ìììì ™ 5o 5o 5o ™ìììì ™ 5o 5o ™ìììì ™ 5o <5fœ ™ìì 5oœ 5oœ û û û û û œ û œ û œ continue without pause 5o 5o 5o ù ù ù + + T II ? ù ù ù ù ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ìì ™ 5oœ 5oœ 5oœ 5oœ ™ìììì ™ 5oœ 5oœ 5oœ ™ìììì ™ 5oœ 5oœ ™ìììì ™ 5oœ û û û 5oœ û 5oœ 5oœ 5oœ û û û û ù ù ù + ù + + + H I ? ù™ œ œ œ œ ™ ù™ œ œ œ ™ ù™ œ œ ™ ù™ œ ™ { ìì ™ ™ìììì ™ ™ìììì ™ œ ™ìììì ™ œ œ ™ìì û û û û û œ û œ û œ continue without pause ù ù + ù + + H II ? ù ù ù ù ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ìì ™ œ œ œ œ ™ìììì ™ œ œ œ ™ìììì ™ œ œ œ ™ìììì ™ œ { û û œ û œ û œ 4 û û û û ù ù ù ù + T I ? ù™ ™ ù™ ™ ù™ ™ ù™ œ ™ ìì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ œ 5o œ ™ìì û û û û 5o n œ û û û û 5o ù ù ù + ù + + + + T II ? ù ù ù ù ™ìììì ™ 5oœ ™ìììì ™ œ ™ìììì ™ œ ™ìììì ™ œ <5fœ œ ™ ™ <5fœ ™ ™ o <5fœ ™ ™ o <5fœ ™ ™ o 5o û oœ û oœ û oœ û 5oœ 5oœ oœ oœ û û û û ù ù ù ù + H I ? ù ù ù ù ìì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ œ bœ ™ìì { û û û û œ œ û û û û ù ù ù + ù + + + H II ? ù ù ù ù œ œ ™ìììì ™ œ œ bœ ™ìììì ™ bœ œ bœ ™ìììì ™ bœ œ bœ ™ìììì ™ bœ { û œ û œ û bœ û bœ û û û û ù ù ù + ù + + + T I ? ù ù ù 5oœ ™ìììì ™ oœ ™ìììì ™ oœ ™ìììì ™ oœ ™ìì œ nœ œ nœ œ nœ œ œ 5o œ û 5o œ û o œ û o o œ û û û û o o o o ù ù ù + ù T II ? ù ù ù ù ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì ™ ‘ ™ìììì