Fix fret ruler extension parsing scales

extensions/fablabchemnitz/fret_ruler/scales/magic22trans37ex.scl

@@ -0,0 +1,70 @@
+! magic22trans37ex.scl
+Extended Magic-22 2.3.7 transversal
+66
+!
+537824/531441
+19683/19208
+28/27
+15059072/14348907
+729/686
+784/729
+421654016/387420489
+14348907/13176688
+54/49
+4782969/4302592
+21952/19683
+9/8
+67228/59049
+177147/153664
+7/6
+1882384/1594323
+6561/5488
+98/81
+52706752/43046721
+129140163/105413504
+243/196
+2744/2187
+4782969/3764768
+9/7
+76832/59049
+177147/134456
+4/3
+2151296/1594323
+6561/4802
+112/81
+2187/1568
+60236288/43046721
+343/243
+184473632/129140163
+43046721/30118144
+81/56
+9604/6561
+1594323/1075648
+3/2
+268912/177147
+59049/38416
+14/9
+7529536/4782969
+2187/1372
+392/243
+210827008/129140163
+43046721/26353376
+81/49
+10976/6561
+1594323/941192
+12/7
+307328/177147
+59049/33614
+16/9
+19683/10976
+8605184/4782969
+49/27
+26353376/14348907
+387420489/210827008
+729/392
+1372/729
+14348907/7529536
+27/14
+38416/19683
+531441/268912
+2/1