Some people believe the song’s title refers to a guy named Freddie who’d try to get into shows to hear Miles and other jazz artists play, without paying.
An American classic that never hit in the US, “What a Wonderful World” was originally offered to Tony Bennett to sing, who turned it down. He actually did record several performances of the song later in tribute to Louis Armstrong, for whom the song is eternally known.
Charles Mingus composed his classic song, "Goodbye Pork Pie Hat," as a eulogy for his friend Lester Young, noting the saxophonist’s regular headwear. Billie Holiday called Young, “The Prez,” the President of Jazz.