koq forte
The two basic dynamic indications in music are:
p or piano, meaning "soft", and
f or forte, meaning "loud."
More subtle degrees of loudness or softness are indicated by:
mp, standing for mezzo-piano, meaning "moderately soft", and
mf, standing for mezzo-forte, meaning "moderately loud".
Beyond f and p, there are also
pp, standing for "pianissimo" and meaning "very soft", and
ff, standing for "fortissimo" and meaning "very loud".
To indicate an even softer dynamic than pianissimo, ppp is marked, with the reading pianissimo possibile ("softest possible"). The same is done on the loud side of the scale, with fff being fortissimo possibile ("loudest possible")