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
Twelve Duets K.V. 487 no.9
Trad.
Dear Liza (hole in my bucket)
David Bruce
Creak, Crunch, Scream!
Trad.
The Rose of Tralee
Delibes
Mazurka from Coppelia
Michel Corrette
Fanfare
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Calon Lan
Caldara
Alma Del Core
Schubert
Waltz in A
Chopin
Waltz in A Minor b150
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Carrickfergus
Trad.
Here We Go Looby Loo
Trad.
Music Alone Shall Live (Round)
Kreisler
Liebesfreud (Love's Joy) from 3 Old Vienn...
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L'homme arme (as used in Karl Jenkins'...
Mozart
Waltz no.1 from Three Waltzes
Strauss II
Tales from the Vienna Wood
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Holy God, We Praise Thy Name
Marcello
Concerto in D Minor 2. Adagio