Lawrence Quinnett is an active concert pianist who has performed recitals, conducted master classes, and adjudicated competitions in the Caribbean, the United Kingdom, and the United States. Quinnett has several competition successes to his credit, including first prize in the 2013 Doctoral Concerto Competition at Florida State University, the 2011 FSU Chapman Competition, the 2008 South Carolina Music Teachers’ Association Young Artist Piano Competition, and the 2006 Southeastern College Piano Competition. He has been repeatedly featured as a performing pianist and harpsichordist for Colour of Music Festival events in Pennsylvania, South Carolina, and Texas. He has also performed Rachmaninoff's Third Piano Concerto, both with the National Repertory Orchestra and the Florida State University Symphony Orchestra.

Other notable performances include recitals at the Central Florida Music Teachers' Association, the Montserrat Music Festival in the West Indies, the Music at Mains Series in Jacksonville, the Trinity Artists Series in New Orleans, and the Steinway Piano Galleries of Charlotte and Greensboro, North Carolina. He has played all-Bach recitals at Bach festivals in Louisiana and Wisconsin, and has performed a majority of the Beethoven solo piano sonatas. A supporter of new music, Quinnett has performed in the 2013 New Music Festival and 2012 John Cage Festival at FSU, and participated as both performer and lecturer at the 2013 Ligeti Symposium and Festival, for which he received a unique recognition of excellence.