Sheet Music in 3/4 time
The 3/4 time signature, also known as "waltz time," is characterized by its strong-weak-weak rhythmic pattern, having three quarter-note (crotchet) beats per measure (bar).
As well as the Waltz, other examples of 3/4 time include the Minuet, the German/Austrian Ländler and one of Chopin's favourites, the Mazurka.

Mozart
Twelve Duets k.487 no.4
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Mozart
Sonata No.16 K. 545 2nd Movement
Mozart
Twelve Duets K.V. 487 no.9
Strauss II
Emperor Waltz, Op. 437
Beethoven
Minuet, WoO 82
Trad.
The Wexford Carol
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Dear Liza (hole in my bucket)
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The Rose of Tralee
Delibes
Mazurka from Coppelia
Beethoven
Minuet & Trio from Sonata op31.no.3
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Michel Corrette
Fanfare
David Bruce
Creak, Crunch, Scream!
Trad.
The South Wind
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Calon Lan
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Dona Blanca (Lady White) (Mexican traditional...
Schubert
Waltz in A
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Here We Go Looby Loo
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Carrickfergus
Trad.
Music Alone Shall Live (Round)
Caldara
Alma Del Core