[6] In addition to performing a repertoire of standard classical masterworks, the orchestra gives a voice to Ireland's contemporary composers.

[13] In 2008, the DPO performed at "The World Fleadh", Ireland's largest Celtic music festival with Frankie Gavin & De Dannan, Moya Brennan, Brian Kennedy and Anthony Kearns of the Three Irish Tenors.

[14] In 2009, it undertook its inaugural tour of the United States of America with 49-concert dates across 24 states, under the auspices of Columbia Artists Management Inc.,[15][16] In 2010 it toured China,[17] performing at the official Shanghai Grand Theatre World Expo 2010 program.

[21][22] The Hong Kong-based, Phoenix Television Station, made a documentary about the Orchestra's China Tour of 2010.

The musicians pursue parallel careers as international soloists, members of eminent chamber groups, and as tutors and professors of music.