Violonist Mark Fewer and composer/pianist Daniel Janke have worked together on several film and concert projects over the years. Revisiting Canadian folklore, Celestial Blue is the culmination of their desire to explore this musical connection through a series of duets that represent their unique collaborative voice.

While most of Celestial Blue's music is entirely composed, some works contain elements of improvisation or co-improvisation. It also draws heavily on gospel and other folk traditions, the melodies of which touch the two Canadian musicians deeply. The title Celestial Blue refers to the open blue sky and its infinite possibilities.