Mozart 6 variations on Salve tu Domine:
The 6 Variations on “Salve tu, Domine” in F major, K. 398 is a solo keyboard piece by Wolfgang Amadeus Mozart. He composed it in Vienna in March 1783. The work uses a delicate theme from Giovanni Paisiello’s 1779 opera I filosofi immaginarii.

Chopin bolero op.19:
Frédéric Chopin’s Boléro, Op. 19 in A minor is a solitary concert piano work composed in 1833 and published in 1834. Though written during a Parisian craze for Spanish styles, music scholars note it sounds much more like a disguised Polish polonaise than a true Spanish dance.