The original version is the Trumpet version, noted below. Trumpet and piano are GPO, guitar (if it is present) is something else) The piano solo version is GPO Steinway. Actually, there is a two guitar version, which I like best, but won't list it here because it is GPO-free. It is virtually identical to the piano solo version.
Huatabampo (Piano Solo)
Huatabampo (Trumpet with accompaniment)