M
Mächtig (Ger)
Mighty, powerful
Maestoso
Majestically
Marcato
Emphasized, heavily accented
Martellato
Articulation marking: "hammered"
Mässig (Ger)
Moderately
Measure (US)
Bar
Meno mosso
Less movement, meaning slower
Mi
In Sol fa, the third note
Minim
Half a semibreve, two crotchets
Mit dämpfer (Ger)
With mute, like con sord
mit großem Ton (Ger)
With great tone, with lots of passion, like espressivo
Modulation
The process of changing from one key to another within a composition
N
Natural
A musical symbol which cancels a sharp or a flat
Net (Fre)
Clean, clear
Niente
Nothing
Nocturne
Slow, dreamy night piece, often for solo piano
Non troppo
Not too much