Integrated Music Theoryan open, interactive, online textbook for college music theory
CC BY-NC-SA 2018.
Chapter 12) Instrument Transpositions, Ranges, and Score Reduction ❮ 12a Lesson - Instrumental Transpositions and Ranges | 12b Examples - Score Reading and Reduction ❯
Why is it called a B-flat instrument?
-When the instrument plays its C, the sounds a Bb
-This works with other instruments. Eb Clarinet sounds an Eb when it is reading a C etc.