Reblogging this again because I found info!
This is 2/3 of a band called Too Many Zooz (they’re lacking their trumpeter here), the song is called ‘Flightning,’ and the genre is “brass house” (which i think they made up but hey i dig it). They have a handful of songs on Spotify and just successfully Kickstarted their first full-length album.
(Source: http://amuseoffirebane.tumblr.com/)