! pipedum_27g.scl ! 2401/2400, 1728/1715, 686/675, Paul Erlich, 2001 27 ! 49/48 360/343 15/14 2401/2160 8/7 7/6 6/5 60/49 5/4 9/7 4/3 49/36 7/5 10/7 72/49 3/2 14/9 8/5 49/30 5/3 12/7 7/4 4320/2401 28/15 343/180 96/49 2/1