there are couple of technical differences btw MM and MC
1) MM cart is high output impedance driver, vs low output impedance MC. MM cart will sound better with most tonearms and phono higher resistance cables, while MC will require low as possible interconnects. You may check your end of phono cable to arm connector (headshell pin) to check if resistance is below /above1 Ohm. If resistance is high, arm wiring and better connectors are needed for MC.
2) MM carts typically require less tracking needle pressure for similar performance comparing to MC, typ 1g for MM vs 2g for MC (MC coils have wires with more moving resistance).
I compared sound of Audio Technica ART9 to AT-ML170/180, I found as MM ML170/180 sound more airy, warmer on many records (not all).