A musical break is a pause in a performance or piece of music. The term can be broken down into three parts: REST (4 letters), entr'acte (8 letters), and INTERLUDE (9 letters). A REST is a period of silence in a piece of music, an entr'acte is a short musical piece that is performed between two acts of a play or opera, and an INTERLUDE is a short piece of music that is performed between two sections of a longer work.