At the age of 21 D'Andrea had his conductorial debut at the Royal Albert Hall conducting a special vocal arrangement of Intermezzo from Mascagni's Cavalleria rusticana.

While still studying D'Andrea became involved with the contemporary worship of Kensington Temple, vocally leading a band, and headlining events held at numerous venues in London including some at Wembley Arena.

Named Persephone and based on the Greek legend, the show featured singer Rachel Fabri of the group All Angels in the lead role.

Soon after he returned to Cannes for the Film Festival[2] to conduct his own orchestra during the de Grisogono party at Hotel Du Cap Eden Roc, hosted by actress Sharon Stone, and attended by Leonardo DiCaprio, Colin Farrell, Paris Hilton, Tyra Banks, Alessandra Ambrosia, and designers Valentino and Robert Cavalli among others.

A few Rambert dancers dressed in full kimono joined D'Andrea for a premier of some of his Asian inspired works which took place at St Martins in the Fields in January 2014,[4] alongside solo violinist Satoko Fukuda.

In 2015 he was asked by choreographer Christopher Marney to create a piece to be performed by the English National Ballet at the Royal Festival Hall.

In 2014 D'Andrea formed a duo with drummer and percussionist Troy Miller, creating an album of orchestral reworkings of the Gershwin songbook, featuring contemporary voices.