Does "Gravy" have the intro Miles uses? (The Leo Parker sort of does.)
"Gravy" does not have the Miles intro, which "El Sino" certainly hints at.
Not at the beginning, but Gravy actually has it as outro! (El Sino and Walkin' use it both as intro and outro)
I couldn't find a video of Gravy, but it exists on Spotify for those who have that.
I have Spotify but don't find Ammons' "Gravy" there.
Aha, could be licensing differences depending on one's location then. If I search for 'Gene Ammons Gravy', I get four different albums containing it. Three are public domain releases, but one is Stitt's Bits, an official Concord release, which one would assume they would make available in the US too.