Answer: jsbach

AnswerCrossword Clue
JSBACH

"Musical Offering" composer

JSBACH

Prolific cantata composer

JSBACH

With L.v. Beethoven and J. Brahms, the third of the three B's

JSBACH
C.P.E.'s father
JSBACH
Baroque byline
JSBACHFocus of an annual Leipzig festival
JSBACHMajor Baroque composer's signature
JSBACHBaroque giant
JSBACHSignature in music.
JSBACHComposer of the "Brandenburg Concertos," in brief
JSBACH"Goldberg Variations" composer, in brief
JSBACH"Original father of harmony," per Beethoven, briefly
JSBACH"St. Matthew Passion" composer, for short
JSBACHMass producer, for short
JSBACHMusical great whose grave went unmarked for nearly 150 years
JSBACH"St. John Passion" composer
JSBACH"The Well-Tempered Clavier" composer
JSBACHMass master, in brief
JSBACH"St. Matthew Passion" composer
JSBACHP.D.Q.'s father, supposedly