Sreela Banerjee of the Pyr Project wrote to tell me about a brilliant song the project has recently produced about Wallace. It is called 'Wallace was a very busy man' - and it is sung by the Charles Matthews Singers, who are children mostly from Mickleton Primary School, in Gloucestershire. To hear it click here and then on "The Wallace song" (or simply download the .mp3 directly). The words can be read in this PDF and the music can be found here. There are some nice resources for kids about Wallace, the Wallace Line, and Wallace's world, on the project's "Resources" page.
This must be the first song ever written about Wallace - the only other I know which even mentions him is this one.