24 mazurkas by Frédéric Chopin were published in 1836, when the composer was 26 years old.
[1] The second mazurka of the set is in C major with a tempo marking of Allegro non troppo, opening with a quiet alternation of C and G major sotto voce chords.
The trio is closed by using repeated notes, generally open fifths.
[4] The third mazurka of the set is in A-flat major, with a tempo marking of Moderato non Troppo.
The fourth mazurka of the set is in B-flat minor, ending on the dominant note (F) alone.