“Martha J. is not only a marvelous singer with a lovely instrument and delivery, but also a substantial song lyricist, writing with grace and subtle eloquence. She found a perfect collaborator in pianist and composer Francesco Chebat... “ - Mark Stevens, Piano and All That Jazz Radio

"... an extraordinary sensibility, a perfect control of the voice that gives great emotions (...) one of the most gifted and refined vocalists of our jazz/folk/fusion scene." - Gianni Zuretti, L'isola che non c'era  

"...an explosion of freshness, of vocal skill and great professionalism, together with a talent that no school can teach..." G. Candiano - TG com

"... a balladeuse with deep sensibility, confidential phrasing, a smooth feeling and a natural elegance." Bruno Schiozzi, Musica Jazz

"Martha J. is a natural in classic jazz fittings with a smooth melodic mannerism reminiscent of Edith Piaf and the vivacious swing-jazz incisions of Jane Monheit..." - JazzTimes

"Sheer loveliness, Italian-born vocalist/goddess Martha J. has the dulcet pitch of Petula Clark, the bedroomy-eye timbres of Lena Horne, and the exquisite nuances reminiscent of Ella Fitzgerald." - Susan Frances, JazzReview.com