Jason is a fan of all music. He found his way around the music world on his family's record collections, and seemed to grow towards Elton John, Kiss, Queen and any over the top styles. Certain things seemingly found their way into his personal collection of music. The birth of punk and early heavy metal was making its way into pop culture around the time Jason was a young teen, learning songs by lifting and dropping of the needle into the grooves of his fave records after school and weekends.
Growing up with three brothers who all loved music, influences abound throughout the household.
Jason started on his music career armed with his brothers 3/4 size acoustic guitar and a Kay brand bass guitar bought by mother and oldest brother. Playing early shows in backyards and veteran halls, he was only immulating his idols and what he loved about them on the records, as well as pictures in Circus and Hit Parader. Little did he or anyone in his family know, he would be in the pages of those magazines a decade later.

1978-79-first band called RAMPAGE, as bassist.

1980 moved to Austin, TX to play music. ("I feel like my musical life didn't even start until that moment").
1981 started band, FALLEN ANGEL-bass/vocals .entering the already budding Austin music scene playing covers, still only 17/18 years old.

1982 joined WATCH TOWER, and cut his teeth as a front man for what would grow to be massively influential on some of the biggest names in rock music,("technical thrash metal" long before genre specific names such

as math metal or progressive metal )- the band opened for most of the band that went on to make successful gold and platinum careers in the genre of heavy metal, some of those are SLAYER, ANTHRAX,TROUBLE, KING DIAMOND and more...
- Bands that cite WATCH TOWER as an influence publicly-DREAM THEATER, CYNIC, DEATH.... Watch Tower continues to be legendary in being publicly proclaimed by press and historians in the genre of metal/rock, as
“Pioneers of progressive thrash metal".
1985- Watch Tower releases debut-Energetic Disassembly.(Jason Vocals)

1988- At age 23/24...McMaster leaves Watch Tower -and joined cock rock/hard rock, glam rock band, DANGEROUS TOYS, as front man/song writer. Signed to CBS in 1988 (was a year later bought by Sony music) Columbia records. Two number one MTV videos in 1989 from debut self titled release May 9, 1989 - Dangerous Toys has two gold sales awards on Columbia Records. (Self titled 1989 and 'Hellacious Acres 1991)
-Dangerous toys toured with rock icons The Cult, L.A. Guns, Warrant, and Kix as well as Motorhead, Judas Priest, Metal Church, and Alice Cooper on a Sony music summer tour(Operation Rock N Roll) upon the release of the bands sophomore release, Hellacious Acres.
- Dangerous Toys rides out a successful touring career, but opts out of SONY deal by 1992, for a smaller DIY Independent recording deal with Antones/DMZ label by 1993 through 1996 in hometown Austin. The band released two more studio recordings,1994-"Pissed", and 1995 "The R-tist $-merly Known as Dangerous Toys", both were re-issued in 1999, as well as a collection of live recordings, "Vitamins and Crashhelmets Tour-Greatest Hits Live" on Deadline/Cleopatra Records, worldwide.
-The 1999 live record included 7 tracks taken from Westwood One's "King Biscuit Flower Hour", taken from a concert recorded the Orpheum theater in Oct.1989.

-1997 Jason joins San Antonio based, The UNION UNDERGROUND, as bass guitarist for a two year stint
-the same year, McMaster joins Austin industrial metal band, TERMINAL 46, on guitar, for a two year stint.
by the end of 1998, McMaster joins forces with a new act, GAHDZILLA MOTOR COMPANY, as bassist/front man-lead singer/songwriter. in order to write and record with GMC, Jason leaves both T-46 and U/U.
GAHDZILLA MOTOR COMPANY- records 17 songs for two records worth of material, and between 1999 and 2003, becomes a favorite among heavy metal collectors of unreleased demos, etc, underground label executives, and press pundits, as '"the next big thing". described by some publicly in press as "Sci-Fi- Metallica".

1998- March of that year... Jason Is inducted into the "Texas Music Hall of Fame" at the Austin Chronicle's 1998 "Austin Music Awards".

1999 WATCH TOWER reunites to record a cover song for a tribute to the popular German metal band ACCEPT, for a tribute CD for Nuclear Blast Records (Germany)
2000 Watchtower is asked to play the popular German metal festival, Bang Your head, in Balingen, summer of 2000, with the Scorpions, Saxon, and UDO ( former lead vocalist for ACCEPT) and many other European metal bands that were early influences of Watch Tower.

1999- Jason forms BROKEN TEETH, with the release of a studio project produced by Perris Records, soon becomes a full fledged band/ live act. Broken Teeth now has successfully toured the US doing easily over 1000 shows since 2003, with 5 worldwide full length releases, as well as two DVD concert videos.

2001- McMaster is ordained. Non-Denominational. (Nicknamed, "Pastor McMaster from the Church of Disaster" by fellow band mate, Scott Dalhover- Dangerous Toys)

2002- McMaster has his own show on "The Austin Music Network"- THE HARD SHOW- where he made home playing all rock and metal/punk videos for Austin cable channel 15.

2004- Watch Tower is invited to headline the "Headway festival" in Amstelveen Holland. Show held at P-60 in Amstelveen near Amsterdam in summer 2004.

2005 McMaster is called by long time friend and drummer for the progressive rock group Dream Theater, Mike Portnoy, to be the vocalist for a Tribute to Canadian band, RUSH, for a one night only performance at the Vic Theater in downtown Chicago, Il.- the show was recorded live and on film, and is available on DVD and CD at www.mikeportnoy.com.
Other musicians included in the project were guitarist/virtuoso - Paul Gilbert (RacerX and Mr. Big), and Sean Malone on bass (Jazz theory instructor at the University of Florida, and bassist for progressive metal group, Cynic)

2007 Jason is Hired as premiere Vocal Instructor at the "School of Rock" Austin chapter, a corporate music school for kids focusing on rock, punk, glam, and heavy metal. (The School of Rock works with the community to help build confidence and social skills among young people through rock music, with 50 schools nationwide).

2008 McMaster joins gothic power metal band IGNITOR as front man and releases "The Spider Queen" on Heavy Artillery records in the USA and Canada, and on Cruz Del Sur records in Europe and other territories. IGNITOR is recording a second effort with Jason fronting with a working title of "Shadow of the Needle". set for release in 2011.

2010- New Broken Teeth-"Viva la Rock, Fantastico" is released. Perris Records, Worldwide.
-New Ignitor- the Spider Queen is released.
2010- New Dangerous Toys- "XX" -20th Year Anniversary Celebration- DVD is released on MVD, Worldwide.

2010-McMaster is honored a star and is inducted into the "South Texas Music Walk of Fame", in hometwon Corpus Christi,Tx.
-Ribbon Cutting Ceremony and Concert is set for June 3, 2011.

2011- New releases set- TBA by Broken Teeth, Ignitor, and new San Antonio based band, EVIL UNITED.

-Throughout his career, Jason has contributed to many Tribute CD’s and Video Cameos, by many artists, as well as featured singer/back up singer, percussionist, bassist, too numerous to mention. (Including some of the biggest names in rock in some of these collaborations.) Some include members of Skidrow, Carmine Appice (Rod Stewart band), George Lynch (Dokken), etc…

Honorable Mentions in Many Books

• "White line fever"(Lemmy, bassist/singer of Motorhead)...mentions road stories of a tour dangerous toys did     with Sony related bands summer 1991.
• "The Dirt", Motley Crue's book of trials and tribulation. (page 257)
• "Are You Morbid-Into the Pandemonium of Celtic Frost" (Tom Gabriel Fischer-singer/guitarist of
    Swiss-German death metal group Celtic Frost)
• "Kiss and Tell" Favorable review by band members of Kiss on Jason’s performance of a Kiss song from a     microphone passed in the audience.
• "Defenders of the Faith" The true story of Judas Priest- an UN-official biography / stories of the band,     with interviews with bands and artists that toured or have connection to the influential metal band,
    Judas Priest.
•  Rock journalist Lonn Friend Most known as editor for rock magazine"RIP", book titled "Life on Planet Rock"     mentions Dangerous Toys on page 198 (forward written by Lars Ulrich).