allmusic lists an album by William Jackson & the Scottish Orchestra of New Music called "St. Mungo: A Celtic Suite for Glasgow," Greentrax CD #41, 1994. The contents are:

1. St. Mungo's Blessing: Introduction
2. The Bird
3. The Tree
4. The Bell
5. The Fish

I wasn't able to find any lyrics or sound samples.

The bird, tree, bell, and fish are all featured on Glasgow's coat of arms which is shown and explained here.