[1] As of January 2022, Parton's catalog has amassed more than 3 billion global streams.

With steady success during the remainder of the 1960s (both as a solo artist and with a series of duet albums with Porter Wagoner), her sales and chart peak came during the 1970s and continued into the 1980s; Parton's subsequent albums in the later part of the 1990s were lower in sales.

To be considered notable the album must contain some previously unreleased material, have appeared on a music chart, or have received a certification.

These contributions range from solo recordings and duets to providing backing and harmony vocals for other artists.

This additional work spans Parton's entire career, beginning in 1966 when she provided uncredited harmony vocals on Bill Phillips' recording of her composition "Put It Off Until Tomorrow" through her most recent collaboration with Positive Vibrations in 2022, a reggae version of her 1978 hit "Two Doors Down".