Mechem’s first opera, Tartuffe, has been performed 400 times in six countries "A distinctive voice... music of sheer inventiveness... a lengthy ovation." Opera Now (London)on Tartuffe in Vienna
John Brown was premiered in 2008 by Lyric Opera Kansas City “. . . .clutches music, history and the soul itself. . . his score swells into both requiem and celebration.
The crowd clapped so long and hard that hands grew sore.” — Pitch.com
Josef Krips premiered Mechem’s symphonies with the San Francisco Symphony "A master symphonist... the audience reacted immediately." Musical Observer, Russia on all-Mechem symphonic concert in Moscow
The Czech Quartet and New Zürich Quartet have toured with his String Quartet No. 1 “Extraordinary . . . to a degree that few modern American works equal, it held its own
with music of Beethoven and Smetana . . . searches sharply and deeply . . . with
fanciful touches of dance, caprice and humor.” — San Franciso Examiner
Mechem is often called the “dean of American choral composers” “The finest in choral composition . . . he combines high artistic integrity with the ability
directly with performers and audience.” — Choral Journal
Rowman & Littlefield published Mechem's memoir in 2015 — Believe Your Ears: Life of a Lyric Composer,
winner of the ASCAP 48th annual award for "outstanding musical biography"