A performer may record a solo album for a number of reasons.

More than 50 performers have recorded versions of the song.

Members of the production team and performers on the show would also record their appearances, leading to many episodes existing in private hands.

The same performers recorded the work for EMI immediately afterwards.

Many of Chicago's best orchestras and performers recorded for Brunswick.

Later, performers wanted to be paid, and recorded performances became more prevalent.

In 1994, the three performers recorded a follow-up to Trio.

Often individual performers will record and play music in a variety of different styles, sometimes in the same performance.

Eventually, nineteen performers recorded seventy-six songs at the Sessions.

Established performers also occasionally record at the Loft.