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
Minuet K.94
Puccini
One Fine Day from Madame Butterfly
Chopin
Mazurka in A minor, Op. 67, No. 4
Mozart
Twelve Duets k.487 no.3
Haydn
Three Duets - Menuetto 1
Lowry
I Need Thee Every Hour
Handel
Menuet from Music for the Royal Fireworks
David Bruce
Game of Crowns
Beethoven
11 Bagatelles Op.119 No.1
Caldara
Sebben Crudele
Satie
Gymnopedie No.2
Bizet
Chanson Boheme
Bach
Come Sweet Death
Trad.
The Ash Grove (Llywn Onn) (Traditional Welsh)
Trad.
She Moved Through the Fair (Irish trad.)
Bizet
Seguedille from Carmen
Tartini
Sarabanda
Ernest R. Ball
When Irish Eyes Are Smiling
Trad.
Wild Rover
Leadbelly
Goodnight, Irene