What key do you write in mostly when you write music for seven string guitars and using what tuning? Please select the key you write in mostly (max three keys, preferably only one) and select the tuning you keep your guitar in. Cheers, /A EDIT: It would be most interesting to see the key-tuning pairs in the answers but that would be +20 options... EDIT II: For instance, pick E for both E major and minor, etc, pic the tonic just to keep it simple... not correct music theory? Moan in your post after voting!!