Final arrangements, continued:
Justice at Heaven’s Gate
“Gate — Early term for a Jazz musician.
Armstrong is the original Swing Jazz player that’s why they call used to call him ‘Gate.’“
— All About Jazz
“Armstrong is also frequently cited as the main source or popularizer of words like scat, gate (a greeting among jazz musicians that became a popular WWII term for a buddy or pal)²
² The term apparently goes back to Louis’s own adolescent nickname, ‘Gatemouth.'”
— Jazz Institute of Chicago