I just got two corrections: 2:03 m57 the 16th notes are actually Eb, F, not Db, Eb 7:12 measures 177 and 178, the last note of the scale is an Eb tied to a whole note. Other than that, great transcription and good ear!
But that Alto Trombone Im só jeulous I wanna play in this band so bad or a with a school of this calibre (my school has no funding and has a small band :(