mezzo-piano
A dynamic marking meaning moderately soft. Abbreviated as mp.
In Depth
Mezzo-piano (mp) means moderately soft — slightly louder than piano but still restrained. It creates a gentle, understated presence that is clearly audible but never assertive. The dynamic sits in the lower-middle portion of the volume range. Mezzo-piano is useful for passages that need to be heard clearly but should not dominate the texture. In orchestral music, a section marked mp provides a supporting role, blending into the ensemble without disappearing. Composers often use mp for lyrical second themes in sonata form, where a softer, more tender character contrasts with the bolder first theme.
Debussy's piano music lives largely in the mp to p dynamic range — he famously said music is the space between the notes, and his quiet dynamics embody that philosophy.