When Celia was learning

I've had this merry little catch running through my head all week, and I just had enough time to do a multitrack recording of it. There is a cheeky little message hidden inside this 17th Century song about a girl having a lesson on a spinnet. Its a baroque keyboard instrument a bit like a little harpsichord, but you can 'shake' or wiggle your finger on the keys to produce vibrato.

It's by John Isham and called "When Celia was learning on the spinet, to play"