Sélectionner la gamme :
['P1','M7','I','Ts'],['P1','6','I','T'],
['M2','m7','II','SD'],
['M3','m7','III','t'],
['P4','M7','IV','SD'],['P4','6','IV','SD'],
['P5','7','V7','D'],
['M6','m7','VI','t'],
['M7','Ø','VII','D']
['P1','m7','I','T'],['P1','m6','I','T'],['P1','mM7','I','Ts'],
['M2','Ø','II','SD'],['M2','m7','II','SD'],
['m3','M7','bIII','t'],['m3','+M7','bIII','ts'],
['P4','m7','IV','SD'],['P4','m6','IV','SD','br'],['P4','7','IV','SD'],['P4','6','IV','SD'],
['P5','m7','Vm7','SD'],['P5','7','V7','D'],
['m6','M7','bVI','SD'],['M6','Ø','VI','SD'],
['m7','7','bVII','SD'],['M7','°7','VII','D'],['M7','Ø','VII','D']