Adler joined Lamb of God after the first guitarist, Abe Spear, left the band. Self-taught, Adler is well known for his unconventional style of playing, which includes odd/dissonant chord shapes, unique timing patterns, odd rhythms, high usage of his fretting hand's pinky finger, wide stretches between frets due to an increased reach, and being an obsessive perfectionist with his right hand rhythm playing. He plays mostly the jagged staccato riffs in Lamb of God's songs, while Mark Morton plays more of the groove-oriented rhythms and solos.
Adler is a primary songwriter in Lamb of God. His songs include "Black Label," "11th Hour," "Blood Junkie," "Hourglass," "Blood of the Scribe," "Beating on Death's Door," "Ashes of the Wake," "Ruin" and "Again We Rise." Adler also co writes songs with Mark Morton, as he wrote the pre-solo breakdown to "Walk With me in Hell", and all of "In Your Words" up until the atmospheric ending which Mark Morton penned.
Adler has recently worked with Houston metal band Vehement to produce their six-track promo CD.