Percussion Ensemble - Level 2 - Digital Download SKU: A0.1456678 By Unlimited Beat. By Benny Andersson, Bjorn Ulvaeus, Humbert Ibach, Jean Schmitt, Jorgen Slips, and Stig Anderson. Arranged by Peter J. Gepson. Broadway,Musical/Show,Pop. 14 pages. Peter J. Gepson Publications #1035745. Published by Peter J. Gepson Publications (A0.1456678). Mama Mia for Large Percussion Ensemble Instrumentation:GlockenspielVibraphoneXylophoneMarimba 1 & 2 (single instrument, 2 players)ChimesDrum SetTriangleTambourineBass Guitar or Keyboard.