The music artists use music notations to perceive which beat is to be played for how long. It consists of a sequence of musical symbols and markers, like accent, brace, chords, clef, notes ...

Composers use a range of signs and symbols to show how they want their music to be played. This was essential in times before music could be recorded and replayed, but it is still important today.

This is not our topic du jour, so we are keeping our brief wider, working with symbols that can be useful to all instrumentalists playing a harmonic instrument, particularly in a band or song context.