 On 20 May 2009 Grosvenor made his debut with the Ulster Orchestra, conductor Kenneth Montgomery, at the National Concert Hall, Dublin.In 2010 Grosvenor joined BBC Radio 3's New Generation Artists scheme, which he completed in 2012.In the summer of 2011 he made his debut at the BBC Proms as the youngest-ever soloist on opening night, playing Liszt's Second Piano Concerto, and Britten's Piano Concerto later in the series with the National Youth Orchestra.