Described as a "musical visionary"[4] by The Telegraph, Sheldrake has been releasing music since 2014.
Cosmo's debut single, "The Moss", was released on 25 March 2014,[5] followed by a debut EP, Pelicans We, on 6 April 2015,[6] and a debut album, The Much Much How How and I, on 6 April 2018.[7] Cosmo releases his music independently.
Much of Sheldrake's work is concerned with improvisation, nonsense, and the sonorous environment. He has provided music for film and theatre, including the score for a series of Samuel Beckett plays at the Young Vic in London.[1] Sheldrake also performs solo and with several bands including Johnny Flynn & The Sussex Wit and the Gentle Mystics. His song "Come Along" was featured in an advertisement for Apple'siPhone XR in the US and UK.[8] The song subsequently charted at number 39 on the US Digital Songs chart dated 26 January 2019.[9]
His 2018 song "Birthday Suit" gained popularity on the video-sharing appTikTok the following year later in November, with the song becoming a trend on the app. [10][11][12]