1 An Approach to Standardizing Pedagogy for Extended Techniques on Tuba By Sean M. Kennedy, BM in Music Performance and MM in Music performance

2 Tuba: The Orchestra: A User's Manual — Andrew Hugill

3 Extended Techniques in Unaccompanied Works for Solo Tuba Written between 1965-1973 and 2002-2013

4 Investigating experimentalism : a case study of the tuba and its repertoire

5 https://youtu.be/2kVf_qNfblQ

6 Piyawat LOUILARPPRASERT - Three Horns 2019 for horn, trombone and tuba

7 John Cage "Water walk"

8 John Cage and Improvisation 

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