A TDK D-C60 cassette, a common speech-quality tape with a 60-minute playing time, in a housing similar to that of the original Philips' Compact Cassette specification

Music

Music is an art form whose medium is sound and silence. Music can be divided into genres and genres can be further divided into subgenres, although the dividing lines and relationships between music genres are often subtle, sometimes open to personal interpretation, and occasionally controversial.
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