Music teacher here, really nice video! I appreciate not only your clear, easy to follow instructions and sound demo, but the fact that you organized the video into specific sections and included some graphics. That really helps, especially with younger learners. Thanks!
Would it help that I have already had experience in playing tuba and baritone horn? I just can't wrap my head around the compensating valve, never used one.
If you're reading treble clef, then it is almost certainly sounding a Bb, however if you're reading bass or tenor clef, a euphonium plays at concert pitch(C is a C).
