Nava turns a song into a night sky. Every note of the melody is a star falling to its place on the keyboard, and the instrument you steer across the lake plays each one you catch. Catch them all and you have played the song.

• Three worlds: a mountain lake with a piano, a Persian garden pool with a santur, and the open sea with a harp. Each instrument grows as your streak does.

• Fifty-two songs in five chapters, from children's tunes and Persian celebration songs to Khaleghi and Saba, Beethoven, Bach and Satie, film themes and today's love songs.

• The sheet music scrolls above you and lights up as you play it.

• Every song has a shape: a calm opening, its heart with chords to catch whole, an echo you play back from memory, golden rain at dawn, and a free solo at the end.

• The lake answers everything that falls into it. Hang lanterns on the festival garland, gather fireflies, light up the village in the hills.

• Two hands: play the left hand and the melody together.

• Meteor Shower and a new Daily Sky every day.

• Sing to steer: your voice moves the instrument.

• English and Persian.

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