With interests encompassing period performance to the newest music, Alexander is a harpist who freelances with major ensembles across the UK.

These include the BBC Concert, Philharmonic and Scottish Symphony Orchestras, the City of Birmingham Symphony Orchestra, the London Sinfonietta, London Chamber Orchestra, English Touring Opera, Brighton Philharmonic, Chroma and (on the Erard) he appears with groups including the Gabrieli Consort and the Academy of Ancient Music.