Hindsight · review build · data not yet validated
Cybernetic music creation systems allow people who appreciate music but who are not knowledgeable about music theory and practice to create music in collaboration with their automatic composition software.
Grader A: partial
Software that composes parts for the user existed: Band-in-a-Box generates accompaniment and solos from chords and style, and Magic GarageBand assembled a band. But collaboration with automatic composition software was not a common way for non-musicians to make music; most used loops they arranged by hand.
Test: Use of automatic composition software by music hobbyists: measurable (products on sale, thousands of shared songs), below 20%.
Grader B: hit
Consumer software that generates musical material for users existed and was in use by 2009. Band-in-a-Box (since 1990) generates complete accompaniments from chords, key, tempo and style. GarageBand supplies ready-made loops and virtual session bands. These are limited forms of 'automatic composition', but they let people without music-theory knowledge produce music together with the software. The claim says such systems 'allow' this, and they did.
Test: Test: automatic-composition or accompaniment software available to and used by non-experts by 2009-2011. Band-in-a-Box (1990 onward) and GarageBand (2004 onward, bundled with every Mac) meet this. Share of the population using them: not measured.