ChucK
strongly-timed, concurrent, on-the-fly.
http://chuck.cs.princeton.edu/doc/images/chuck_logo.jpg
how to get started:
- download chuck (all platforms) and/or miniAudicle (all platforms)
- join and ask questions on mailing lists (chuck and chuck-users)
- documentation
- some tutorials
- language specification
- unit generator reference
- the chuck manual (included in the distribution) provides several tutorials on the language and basic live coding
- video tutorials coming soon!