Everything music & ear training related

ToneGym

I am stuck at Departurer in distinguishing M21 from m21. Does anyone have a hint / technique for me, how to overcome this? I think, I have to find a different approach. Thanks a lot!
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21 ? ? 😯😯 I though like 13 is the end. how far does it get, 52? further? is there no end to it?

I am sorry, I know I am not helpfull, but jeez, 21, that sounds like superpower.
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Henry Do
Sep 27
I dont know much about theory, but in my experience, M21 has more tension feeling than m21
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Ken Wilkens
Sep 27
I use song references to hear intervals. For m7 I hear “Tonight” from West Side Story (There’s a place for us). I also have a reference song for the M7 (actually from the musical Damn Yankees) - also agree - the M7 has a lot more tension.
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Cuantas Vacas
Sep 27
To me, it feels much like m7-M7, maybe a bit less dissonant