La première trompette Summit G4 de pré-production est INCROYABLE !
20:21
Comparing the first two G5 Prototype Trumpets
1:52:12
Deep Dive - 2025 Harrelson G4 Trumpet Innovations
30:48
【「ピアノ・スケールのバイブル」ピアノを速く弾くための音階練習_40001_Db_C#m】Scale Practice for Fast Playing 40001 1# Db C#m T20 T40
18:24
This Rare Futuristic eBike is a Total Nightmare
45:01
How to build a trumpet | SWR Handwerkskunst
12:22
Summit One #98 with SS Tuning Slide + preview of G4 tuning slide
6:39
Top 10 Reasons you want a G4 Trumpet
12:33