The last of the Trail’s Foundation Music on the Trail series is set for this Saturday, July 10th from 9 a.m. to 11 a.m. The event will be at Lakeshore Park and will feature harpist Sarah Hall and folk/alternative songstress Aubrey Hays. The series, sponsored by H-E-B and powered by nonprofit Austin Texas Musicians, has been going on through out these first summer weekends. Filling the trail with music all before the whether gets too hot here in Austin, Texas.