Dynamics - The softs and louds of music
f(Forte) - Loud
p(piano) - Soft
Ritard - Slow down gradually
Accelerando - Gradually speed up
D.C. al Fine - Go back to the beginning and stop at "fine"
Da Capo - Go back to the beginning
Fine - "the End"
Coda - the tail of musical piece
Arpeggio - meaning broken chord the term arpeggio refers to playing a chord in a succession of notes rather than simultanious.
Scale - A series of notes played in an order such as ascending and descending.
Chord - A set of notes that are played at the same time. Chordal possibilities go to infinity.
Triad - A three note chord, there are four types of triads: major, minor, augmented and diminished.
Interval - The distance between 2 notes. The smallest interval we have in western music is a minor second, also known as a half step.
Enharmonic - a note that can have one name or another, also known as an accidental
Anacrusis - pickup note