B.E.R.P. Embouchure Builder Trombone GS, Embouchure trainer for trombone and baritone@+The ""BERP"" facilitates the application of theory. It is used for the ""Buzzing"" and serves the development of support and to warm up or to loosen up before playing.@+@+, For mouthpieces with large shank@+@+*Note:* Not suitable for trombones with screwed leadpipe!
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