In his solo recordings playing the viola da gamba, as a guest musician performing with the pianist Uri Caine or in his work with the jazz trumpet player Kenny Wheeler, Ghielmi has produced music that explores new sounds, relying on a solid musical background and a vivid imagination.

His experiments with Luca Pianca or as leader of the Quartetto Italiano di Viole da Gamba (now Il Suonar Parlante) give him the authority to back up his opinions.

Besides the awards he has received, his method of teaching viola da gamba and his teaching chairs in Brescia and Lugano (in the Italian part of Switzerland) are examples of how the academic community has acknowledged his excellence and – even more importantly – has allowed him to found a school. This permits him to continue his quest with absolute freedom.