Listen to Solo PIano online. Solo PIano is an Unknown language song and is sung by San Valentin. Solo PIano, from the album Restaurante Romántico - Música de Fondo para Restaurantes Elegantes y Lujosos para Crear un Ambiente Romántico y Sensual, was released in the year 2016. The duration of the song is 3:17. Download Unknown songs online from JioSaavn.