Liszt

and his Don Juan

One time grandest opera of musical genius Mozart has brought to the piano majestically. 

The piece begins with music sung by the Commendatore, both from the graveyard scene where he threatens Don Giovanni ("Di rider finirai pria dell aurora! Ribaldo audace! Lascia a' morti la pace!" — "Your laughter will not last, even till morning. Remember, that the dead still remember!") and from the finale where he condemns Don Giovanni to Hell. The love duet of Don Giovanni and Zerlina follows ("La ci darem la mano"), along with two variations on this theme, then an extended fantasy on the Champagne aria ("Fin ch'han dal vino"), and finally the work concludes with the Commandatore's threat.In contrast to perhaps the majority of opera fantasies composed during the nineteenth century, Liszt's Don Giovanni paraphrase is a much more tightly controlled and significant work. 

~Wikipedia article 

P/S: An ossia is included by Liszt but there are only a few editions which included. Here are a few samples of the sheet music published by Barenreiter.

Grave opening of the introductory passage

Duetto, a love duet of the famous theme 'La ci darem la mano', Chopin also had wrote a variation about it..Noticed the theme begins in the left hand and gradually shift to the right.

Ossia of the piece, as played by Lang Lang, showed enormosity in strength and fire to the transition of Finale.

Finale, a champagne aria of Don Juan was chosen carefully to anticipate the end of this piece.