Traveling Glissotar / Slotted Saxophone?

[@goldenstarsstudio3153]

this screams rhapsody in blue

[@TheNathanJasper]

Awe so its an angry goose.

[@bradydanfordtalented]

great video. wondering if you could elaborate more on the balloons on trombones? thanks

[@regularrandom6045]

7:27 if youre wondering when he starts playing

[@ravelite]

Fascinating instrument! Thanks for sharing.