I'm a new Clojure user. I've been working my way through SICP and the videos that accompany it, and I've also read the Clojure book. I already do a lot of work with a music notation library (JMSL) in Java, and I'd like to see if I could do some tasks more simply in Clojure.
One of the issues I run into is how to represent a musical score using immutable objects. A naïve representation of a score might look something like: - Score contains measures - Measures contain staves - Staves contain tracks - Tracks contain notes - Notes contain articulations, dynamics, and other extras. I've mocked it up before using structmaps, but I get stuck when it comes to doing all this with immutable structures. Immutability is no problem for a system like Lilypond where the score data is fixed when the program runs, but in a system where some of these items may be changing as the score is edited, how do you handle that? Returning a new note via assoc implies that a track's contents would also change, making it a new track, and so on up the chain. (?) I have to be missing something, and probably something glaring. I understand that I could easily do this with mutable code, but if anyone could provide some insight into this, it would be greatly appreciated. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
