Conversation so far:
Who composed Purple Haze?
Hendrix's techniques "all contributed to the dirty, raw, metallic, [and] angular sounds" heard in the song.
How long did it take to make the song?
CANNOTANSWER.

Question: What are some other things about the composition of the song that are noteworthy?
Self-contained rewrite: What are some other things about the composition of the song Purple Haze that are noteworthy other than Hendrix's techniques?