Assertion: bass tuba | /r/HasProperty | same thing
Facets:
Source sentences:
text: -- Bass tuba; Contra bass tuba (in my book the same thing); Bb Bass (in mid-19th century, a wide bore "euphonium" often over-the-shoulder); Bb Baritone (in mid-19th century, a medium-wide bore "baritone" often over-the-shoulder); Bb Tenor (in mid-19th century, a more narrow bore "baritone" or tenor horn, often over-the-shoulder); "Bb Tenor" could also imply a treble clef valved (or not) trombone!