They bought their mellotron used from King Crimson, who must have upgraded to a different model. I'm not dedicated enough to know the differences in the makes,

They bought their mellotron used from King Crimson, who must have upgraded to a different model. I'm not dedicated enough to know the differences in the makes, but Genesis' would break down with enough regularity that Gabriel and Collins had a little story and drum routine they'd distract the audience with whenever it needed to be repaired.