Hurdy-gurdy strings are purely generated electronically by the keys and also in combination with the rotation of the wheel. The signals for drone strings and the snares are generated by the crank movements of the wheel. The data exchange of the musical information between the hurdy-gurdy and connected computers, samplers or synthesizers are managed via MIDI interface. Hurdy-gurdy The hurdy-gurdy is a stringed instrument that produces sound by a hand crank-turned, rosined wheel rubbing against the strings. The wheel functions much like a violin bow, and single notes played on the instrument sound similar to those of a violin. Melodies are
The Hurdy Gurdy Man Gurdy Man" were both released as singles well before the album was released. The recording sessions for the album are purported to have included future Led Zeppelin members Jimmy Page and John Paul Jones. Page was in The Yardbirds at the time and was actively looking to rebuild that band. The album credits John Bonham for percussion on the song and Clem Cattini as the drummer. All tracks credited to Donovan Leitch. According to BMI, "A Sunny Day" and "The River Song" were collaborations with David J. Mills, but "Tangier" was written solely by Mills under its original title of