Someone mentioned this song being from The Sound of Music. It is not in the movie but you may have remembered it from the musical. I performed this song when in the 2nd grade in the high school production of The Sound of Music. The lyrics were as follows:

The violin's singing.
Ah ah ah ah ah ah ah ah (these are sung in various notes)

The horn, the horn,
it sounds so forlorn.

The clarinet, the clarinet,
goes doodle doodle doodle doodle det.

The drum, the drum,
Five, five, five, five, one.

There may be more lyrics, I have the sheet music.. somewhere.
Any questions email me: nydancerchic@yahoo.com