This "Brandywine" tune is from Kenny Baker. It is an American breakdown in G major and cut time. It is not the same tune as "Brandywine Quickstep" which is a march in D major and 2/4 time. There are a number of tunes named "Brandywine" but most are marches or fife tunes. I got this from Adam Hurt and Megan Lynch Chowning's recording on Inside Out (2016). The transcription is from John Lamancusa's web site. It was also recorded by Kenny Baker on Master Fiddler (1994).