Musical passage and Piece of music

Musical passage noun - A short section of a musical composition.

Piece of music and musical passage are semantically related. In some cases you can use "Piece of music" instead a noun phrase "Musical passage".

Piece of music noun - A musical work that has been created.

Musical passage and piece of music are semantically related. Sometimes you can replace phrase "Musical passage" with "Piece of music", this phrases are similar.