While living in London in the years 1926–28 Yehuda Leib Ha-Levi Ashlag, known as Baal Ha-Sulam, a prominent Kabbalist, composed his cycle Melodies of the Upper Worlds which are heard in this recording in piano arrangements by Mikael Ayrapetyan. Many of the melodies are composed to text fragments from Kabbalistic sources and enshrine an aspiration to sense the spiritual world in a direct appeal to the heart.

Mikael Ayrapetyan is a pianist, composer and producer. He is also the founder and artistic director of the music project Secrets of Armenia, which aims to increase international awareness of Armenian classical music, and actively organises concerts featuring Armenian music in venues around the world, for which he is producer, artistic director and pianist. Born in 1984 in Yerevan, Armenia, he studied at the Moscow Tchaikovsky State Conservatory, and continues to uphold the performing traditions of the Russian piano school, of which Konstantin Igumnov, Samuel Feinberg and Lev Oborin are luminaries. His repertoire ranges from the Baroque to the contemporary and includes rarely performed works by Armenian composers.