Have now found The Gladiators at Kwest Productions (quite a good MIDI site) and in the process found that they have a small section of Circus and Carnival tunes. The Gladiators tune is a beauty and extremely well written and arranged. I must find out who the composer was.
Kwest also has a section devoted to'Midis' sequenced by Cakewalk, Band In A Box and Jammer (I think) if there are any readers who use these programs.
Many thanks,
John