For local jazzheads, the name John “Tbone” Paxton is a familiar one. Not only as a celebrated trombone soloist and rotating bandleader for Planet D Nonet, the Sun Messengers, and others but also as a jazz and rhythm vocalist. For his latest endeavor, he’s teamed up with longtime collaborator RJ Spangler for Back in Your Own Backyard, a selection of 100-year-old tunes that span traditional jazz, as well as transitional rhythm and blues. Tbone refers to the songs selected for this project as “non-standard standards” — in other words, some pre-WWII deep cuts. Though the songs may not be classic jazz bangers, the songs on Back in Your Own Backyard were selected for their emotive range because ain’t that what jazz is about, anyway? Paxton and the RJ Spangler Quintet will perform in honor of their collaborative CD release at Cliff Bell’s.