Exploring the Latent Structure of Collaborations in Music Recordings: A Case Study in Nazareno Andrade and Flavio Figueiredo

WHAT AND WHY Collaboration trajectories in jazz records

Chico Hamilton QuintetCharles Mingus Latin Jazz Quintet The John Coltrate QuartetThe Ornette Coleman Double Quartet

Eric Dolphy (sideman) 1958 1960 1960 1961 1961 WHAT KIND OF ENVIRONMENTS ARE FOUND?

(a) (b) Bebop 2 (c) Roland Kirk Miles Davis Miles Davis , Miles Davis, John Coltrane, , Steve Lacy, , J.J. Johnson, Charlie Rouse, Donald Byrd, Hank Mobley, Archie Shepp, Roswell Rudd, Artists Lucky Thompson, Lee Morgan Lester Bowie Dizzy Gillespie, Charlie Parker, Art Blakey & The Jazz M., Miles Davis, Archie Shepp, The Sun Ra Arkestra, Herbie Hancock Miles Davis, , John Coltrane, Art Blakey, Cecil Taylor, Steve Lacy, (sideman) 1961 1962 1963 1964 1965 1967 1968 1971 Dizzy Gillespie And His Orchestra Charles Mingus, Max Roach , Ornette Coleman

Model: Trajectories as explained by latent factors (d) Improvisation UK Big Bands (e) Italian (F) Fusion Paul Rutherford, , Giovanni Maier,Gianni Basso, DonAlias, David Liebman, John Edwards, Johannes Bauer, Lauro Rossi, Dino Piana, , Joe Lovano,

Details: Bayesian graphical model that sees a trajectory as a set of random walks over random environments Artists Collaborators Paul Rogers, Malcolm Griffiths Giancarlo Schiaffini Bob Berg, Mino Cinelu In this work London Improvisers Orchestra, Giorgio Gaslini, Italian Instabile Miles Davis, , Chris McGregor’s Brotherhood Of Breath, Orchestra, EnricoRava, Nexus, John Scofield, Chick Corea, - Jazz recordings from Discogs (www.discogs.com), filtered for obvious reissues Globe Unity Orchestra Chet Baker Nicola Conte Mike Stern, Herbie Hancock Collaborators - Trajectories as explained by |Z| = 30 topics, Gibbs sampling Clear loadings on stylistic, geographical and chronological latent constraints that shape collaboration trajectories

INTERPRETABILITY 1. Who are the that exert more attraction in a given space z? 3. Transition matrix/network for spaces

London Improvisers William Parker Orchestra Chris McGregor's Anthony Braxton Brotherhood Of Breath Rova Globe Unity Quartet Orchestra Masada (3) Barry Guy The Vinny Golia

Large Ensemble 5 3 Aardvark Jazz The Dedication Artist Artist Orchestra Orchestra The Glasgow Improvi- Vinny Golia sers Orchestra The Fonda/Stevens Spontaneous Group Music Ensemble Butch Morris Paul Dunmall

John Zorn Graham Collier Music

0.00 0.05 0.10 0.15 0.20 0.00 0.05 0.10 0.15 0.20 probability probability

Count Basie Orchestra Billie Holiday Sidney Bechet Louis Armstrong 4. What is the probability that an environment z caused collaborator to go And His Orchestra Coleman Hawkins 14 7 from playing with a to playing with a'? Artist

Ella Fitzgerald Artist

Sarah Vaughan Lionel Hampton And His Orchestra Miles Davis Louis Armstrong And His All−Stars 0.00 0.05 0.10 0.15 0.20 0.00 0.05 0.10 0.15 0.20 probability probability

John Coltrane Freddie Hubbard Dizzy Gillespie Donald Byrd J.J. Johnson Hank Modbley Charlies Rouse 2. Visualize graph/transition probabilities on a given space Lucky Thompson

Phil Woods Steve Coleman

Milan Svoboda Likelihood (Avg over 2 years) And Five Elements

Satoko Fujii bottom−4 Louis Armstrong Orchestra New York top−4 Artist Artist Earl Hines 0.0 0.5 1.0

Czechoslovak Radio 1950 1955 1960 Anthony Braxton Jazz Orchestra Year 0.0 2.5 5.0 7.5 10.0 0.0 2.5 5.0 7.5 10.0 Entropy Entropy