In the early 70's, Glass Harp performed with Traffic,Yes, The Kinks, Humble Pie, Alice Cooper, Ted Nugent, and Grand Funk Railroad and others, on stages ranging from the Fillmore auditorium to Carnegie Hall.
Keaggy left the band in 1973 to pursue a solo career. Sferra and Pecchio continued to record together as Glass Harp for a while, and eventually went their separate ways. All three band members have reunited a number of times, including several well received performances in Ohio, and a short tour in 2000. The 2000 reunion tour included a sold out performance with the Youngstown Syrnphony Orchestra, which was recorded and released as a 2 CD set, entitled Strings Attached. Sferra also played drums on Keaggy's Crimson and Blue album, and the 1993 tour in support of that release.