John actually used [his amp] himself, multi-tracked, on his song Misfire on Sheer Heart Attack, and it features heavily in much of the more intricate arrangements I did for the Queen albums. Let's see... The Fairy Feller's Master-Stroke was all triple-tracked and gated by hand using the old push-push buttons in the now defunct Wessex studios [sic]; God Save the Queen, Dreamers Ball, all those trumpet, trombone and clarinet sounds from Good Company... the solo on A Winter's Tale; I love these sounds - no electronic box can make this noise!