Hey hey!
Probably make a good post at some point but some initial thoughts are:
- Dreams - do dreams trigger people to create music?
- Emotional real life experiences (relationship related are an obvious one but basically - anything we are emotional about could lead to the desire to create)
For me personally though - I'm currently close to finishing the music for my first album and all the track on that started as jams on my Twitch stream. It's there that I find I am the most creative and get into the flow of feeling and creativity. So rather than it being a particular event or even emotion it's more just letting go of everything outside of that moment and just feeling it.
Hope you're having a great week!