B.E.R.P. Embouchure Builder Trombone KS
B.E.R.P. Embouchure Builder Trombone KS, Embochure Trainer for Trombone and Tenor Horn@+The ""BERP"" facilitates the application of theory. It is used for the ""Buzzing"", serves the development of support and to warm up or to loosen up before playing.@+@+, For Mouthpieces with small shank