B
B
1 - The musical note B, or the major chord based on B
2 - (Ger) B flat
Bar
A group of beats containing a primary accent and one or more secondary accents, indicated by the placement of bar lines on the staff
Barline
The vertical line placed on the staff to divide the music into bars
Baritone
Male voice range in between Tenor and Bass
Baroque
The period 1600-1750. Musical eras are very vague
Bass
Male lower voice range
Bass clef
The other name for the F clef
Bewegt (Ger)
Agitated, like agitato
Binary
A musical form consisting of two sections, usually designated A and B

Resources page

Bourree
A French dance from the 17th century in brisk duple time starting with a pickup
Brass family
Wind instruments played with a mouthpiece, usually made of metal, including trumpet, trombone, french horn, tuba, cornet, tenor horn and baritone

Brass instruments page

Breit (Ger)
Broadly
Breve
Two semi-breves, eight crotchets. Rare in modern music