Glenn DaGrossa was born and raised in East Islip, Long Island New York. He began music early on, studying guitar from the age of 7 in which his Uncle Philip Devito, a jazz guitarist, gave him his first guitar and lessons that would spark a love affair for guitar and music.

At age 13 he began his first band  with friends to form Lazarus, which stayed together for 10 years. Glenn did a great deal of performing, recording and traveling with this band and it wasn't long before Lazarus became one of Heavy Metal's premier bands on the east coast circuit. It was during these years that he developed his love for performing, writing and singing. It is also the time in which he began to study classical guitar.  Glenn's discipline and commitment to practicing a minimum of 6 hours a day began to show. By the age of 16 he was called upon to play in many rock bands of the time but the love of classical and jazz guitar was always a prominent force in his musical direction. His Idols of the time ranged from different musical genres, whether it was Rock, Metal, Jazz or Classical. " At a very early age I was moved by the sounds of Django, Wes Montgomery and Toots Theilman but soon it would expand to Segovia, Al Dimeola, Pat Metheny, Andreas Vollenweider, and in rock guys like Randy Rhoads, and even song writers like Dan Fogelberg, The Police and Sting". At the same time, Glenn's ability to sing was also taking shape. It wasn't long before he was fronting Lazarus and well on his way to becoming one of Heavy Metal musics premier vocalists, writers and frontmen in his current Power / Prog metal band Awaken, which was signed to Mausoleum Records Belgium in June of 2012, releasing Awaken's first self titled CD. 

He attended Nassau College where he followed his classical guitar teacher and mentor Professor Stanley Solow and double majored in art and music. The relationship and study between Solow and Dagrossa would be one that would last more than 35 years. " Stan is the man, he shaped my musical life and provided me with more than an education or the ability to be a guitarist, he changed my life and shaped my role as a person and an educator. His patience, understanding, showed me a love and devotion to all that is music and life itself. All that he has given to me I could never begin to repay". The Aaron Copeland Conservatory of Music at Queens College in NY, is where he majored in Music Education and Art, studying classical guitar performance and voice. He also studied intensely, music theory, history, solfeggio, composition, and arranging, along with numerous recitals and master classes. Glenn has had the privilege of studying classical guitar and master classes with, Steve Leonard, William Zito, William Mathews, Benjamin Verdery, Manuael Barrueco, Sharon Isbin and Christopher Parkening. In Jazz, Glenn studied with Jimmy Heath and Lionel Hampton. His formal years gave Glenn an opportunity to be a part of many diverse musical situations, which was key in his future as a composer / guitarist.

Signs of Rain, is Glenn's contemporary jazz group that would showcase his love of Jazz, Classical and composition as well as his guitar playing. 

Guitarist, Glenn Dagrossa founded Signs Of Rain in 1999 and released his first CD " August Night, Autumn Sky " in 2001. The CD immediately rose to IUMA’s and MP3.coms top ten charts for Jazz, New Age, Easy Listening, and World Beat. The CD has remained at the top ever since. Approximately 3500 CDs were sold both online and during the bands live appearances. One track from the CD, The song “Corazon De Leon” was licensed by WSOC in Miami as the theme song for their Friday night Latin Jazz show and acoustic number “Brothers Bond” was used on TV news show “20/20”. Corazon de Leon also became the official theme song to WKRQ's Miami Latin Jazz show and the single, ‘Il Mare Chiara’ enjoyed extensive airplay across smooth jazz stations in America and abroad.
In 2002 Glenn immediately set to work on a follow up release, a project that became " The Secret Sorrow ".  Released in April 2004, to a packed house at New York Central Park's Tavern on the Green. Since that time the Greenwich Connecticut based Guitarist has been promoting his music right across the USA. Glenn celebrated the success of his sophmore CD with a North East Tour Performing  in 7 states for more than a year. The Secret Sorrow, enjoyed positive reviews that included  Jazz Times which described the music of Signs of Rain as “ The New Age of Smooth Jazz” or "A meditation of the senses", wrote New Castle Times "...the gift of relaxation" and "Signs of Rain will carve a path well known and far above" .... Jazz Dimensions.  The eleven tracks that make up The Secret Sorrow is essential relaxation music for the busy world in which we live."The Secret Sorrow" has beautiful moments and the music at times gives a sense of space.

Hailing from Somers New York today, the music of Glenn's CD Landscapes boasts the ambient and cinematic sound of new age music with the melodic atmosphere of world music and the guitar symmetry of Latin and Jazz.  With an all star cast of high profile musicians performing on this recording, His music, melody and guitar virtuosity combined with amazing musicianship from himself and his band are what moves the listener on a musical journey. The line up for his 3rd SOR release is Glenn DaGrossa - Guitars, Guitar Synth, Bass, Ernie Adams - Drums ( The Al DiMeola Electric Band, Ramsey Lewis, Stanley Turrentine, Dizzy Gillespie, Larry Coryell, Mike Stern, Gumbi Ortiz - Percussion ( Al Dimeola ), Marcin Fahmee - Piano, Synth ( Wynton Marsalis, Chick Corea, Peter Erskine, Bill Evans.

Denis Poole’s Secret Garden is the place to go for a British perspective on all that’s good, and not so good, in the world of smooth jazz and classic soul.  " In the Secret Garden CD player this week is the latest release from the band Signs Of Rain", " Signs of Rain' dedicates itself to amazing compositions in which the melodies border many different regions of the jazz world", "The songs pass you over into a comfortable array of world, new age and pop sounds". In the world of jazz".  "He who likes Smooth jazz, should definetly hear this music. After one listen, you are sure to be hooked"..... New Jazz Vibe

"After one listen, you will be sure your musical senses have just increased" ... Jazz Dimensions Germany.

"DaGrossa's guitar playing is lyrical, technical and beautifully played".

" Landscapes" is his best effort yet". 

"One of the major benefits for Signs of Rain is Glenn DaGrossa's ability to perform his music effortlessly live. The use of musical and visual stimulation, puts Signs of Rain shows in the category all its own"....... Planet Jazz

"Next time you feel the need to escape the rigors of the working week, put on some coffee, spread the Sunday papers over the floor and slip The Secret Sorrow into the player. You will be transported"..... The Secret Garden, U.K.