[1] In 1968, Winter completed his first album, The Progressive Blues Experiment, and in 1969, he was signed to Columbia Records.

[4] Beginning in 1973, Winter's music was issued by Blue Sky Records, a Columbia custom label.

[2] He produced Hard Again (1977), which earned Waters a Grammy Award and helped re-establish his popularity.

[2] In 2007, he began producing a number of albums from his personal recordings, designated the "Live Bootleg Series".

[5] Winter's last studio album, Step Back, released shortly after his death in 2014, was his most successful in the record charts since his Columbia period.

"[9] The "Live Bootleg Series" are authorized, official releases produced by Winter for the Friday Music label.