i have used algorithms to create music as well, most prominently on this record, released in late 2000:
https://jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj.bandcamp.com/album/deny-everything-lp-4th-record-sample-free-instrumental-remaster
the last track, acidosis, features live performances (piano, guitar, bass, organ, synth, mandolin, flute) and algorithms generating sound via midi sequencing (drums, synthesizers, noise generators) and is very much a collaboration between myself and the computer.
my high school music teacher in the mid 90s was fond of a computer program called "jazz in a box" that would generate midi patterns using ai algorithms. how real it sounded depended on how real the sound fonts were, not on the underlying computer program.
i would be more concerned about midi sequencing + sampling technology taking the jobs of session musicians for instruments outside of standard band instrumentation. as a composer, i can afford to tell a computer to play a violin part, but i can't afford to hire a violin player. maybe i could find a friend that would do it for free. if i was a major production studio, i would be able to afford it but wouldn't want to if i didn't have to. sampling is a more serious threat than ai, but it's also progress in the sense of maximizing compositional flexibility and creative options in real-time spontaneity during the composing process.