Test playing of Friso Heidinga's tenor saxophone prototype during the R&D process 2017-2019 

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“I just used Friso’s tenor saxophone prototype for an entire 90m outdoor festival gig, and it ‘passed the test' with flying colors! I never once felt the need (or even the inclination) to reach for my beloved, trusted SBA. Friso’s horn was a joy to play: powerful, expressive and expansive, yet at the same time focused, balanced and grounded, with remarkable consistency of sound and intonation from bottom to top. I believe Friso is making a world-class instrument, with an exceptionally bright future.”
Joshua Redman
July, 2019