Sad that Keith Emmerson commited suicide,depressed that nerve trouble in his hand would prevent his playing properly.
It was said Jimi Hendrix was planning to join ELP (making it HELP) after THe Band of Gypsies thing finished,and Emmerson once told a quite funny story about ELP playing live with Hendrix watching and filming them from the side of the stage with a cine camera.
Hendrix was stood next to a speaker cabinet and kept motioning to Emmerson to do his knife throwing thing at the speaker so he could capture it on film but Keith was reluctant to do this as Hendrix was so close to the cabinet he thought he might hit Jimi by mistake,but Hendrix kept waving at him to do it,so Emmerson thought oh bugger it then,and threw the knife which flew through the air,missed the centre of the speaker but hit the edge of the cabinet instead,rebounded and flew back across the stage and hit bass player Greg Lake on the head (with the handle thankfully).