instrumentals

I'm looking for a 45 (RPM) that surface sometime in'58 or'59 in the near south side of Chicago. Both sides were instrumental with a somewhat lively beat but not necessarily a polka. One song faded at the end, the other song didn't. The 45 had a brown label from what I could see from the jukebox. I have no idea who the artist is, but I know I'll recognize it once I hear it. Also, there may have been a limited number of them made because the record vendor who visited my uncle's tavern bi-weekly to rotate songs in and out of the jukebox wouldn't sell it to me. It must have been popular and in demand.