Publisher's Synopsis
The upper ranges of some bass clef instruments may be written in tenor clef. While it is more common with instruments such as bassoon and trombone, it is possible for the music of several other instruments to use this clef from time to time.
The music in this book is not catering to any one instrument, but to the clef itself. There may be music that is out of range for your particular instrument. If that is the case, you may try displacing the music by an octave to fit the required range. Key signatures up to and including three sharps and three flats.