tuba noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com
Choosing a Tuba:Choosing Your First Tuba - Musical Instrument Guide - Yamaha Corporation
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Tuba definition in American English | Collins English Dictionary
Tuba Instrument Music, Range & History | What is a Tuba? | Study.com
Tuba - Wikipedia
The Structure of the Tuba:The Tuba Can Have Various Styles - Musical Instrument Guide - Yamaha Corporation
tuba noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com