Who was it that said they write stoned, then edit sober?
For music, be on a light dose of the substance that you feel your music's audience will appeal to. I usually use a small dose of speed (Either in meth form or prescription) to create music.
For writing, I feel like it's best to be in a fairly negative mindset. It is much easier to create good pices of literature while depressed. I cannot explain it. It is as if depression is the pure mind without a filter of happiness over it.
*Write while drunk, edit while sober" - Ernest Hemmingway
What dissociatives are good for inspiring creativity? ....
I am interested to hear from people who say cannabis inspires creativity. I've never understood how, personally.