[8] Since seventh grade, Ingram was progressively affected because his father started distancing himself from his family[9] and he began to "escape" through "loud music in headphones, skateboarding, or getting drunk", spending much time outside of his house.
[4] As a teenager, Ingram became largely involved in the hardcore straight edge scene of Kansas City and for this reason, in 1993, he was invited to join the band xRestrainx as a vocalist.
[16] Ingram, who became a big fan of Earth Crisis' 1992 EP All Out War, began exchanging letters with members of the Syracuse, New York vegan straight edge scene and, a few months after finishing school, he relocated to that city on Christmas Day, 1993.
[19][20] Around Easter 1994, he came back to Kansas City for a weekend visit and Jes Steineger and Stacy Hilt, whom he knew from before, gave him a tape of an instrumental song to audition for their new band, Breach, as singer.
[3] Even though Ingram had a good relationship with some people from the Syracuse scene, he ended up disillusioned with their militant attitude and, shortly thereafter, returned to Kansas with the vocals and lyrics of "Harvest of Maturity", being accepted to join Breach, which subsequently changed its name to Coalesce.
[23][24] Ingram has been featured in most albums by Reggie and the Full Effect, the solo project of former Coalesce drummer James Dewees, with the pseudonyms Hungary Bear and Sean-O-Tronic.
[14][30][31] In 1999, Ingram founded the screenprint company Blue Collar Press, originally selling merchandise to the local bands The Get Up Kids, Appleseed Cast and The Anniversary.
[33] At the time, Ingram was teaching himself graphic design, while simultaneously working as a singer and independent wallpaper hanger, and after seeing a screen press on eBay, he borrowed $200, his father drove him out to Denver and bought it.
[36] Nowadays, it works with Porter Robinson, Neurosis, Hydra Head Records, Marc Maron, DJ Snake, Rufus Wainwright, Yung Gravy, among others artists.
[45] During their first tours, Ingram learned to use his diaphragm to produce a lower and more powerful vocal delivery, which he started recording since 1997 Coalesce split album In Tongues We Speak.
"[6] Among the artists who cite Sean Ingram as an influence or have been quoted expressing admiration for his music are Robin Staps of The Ocean[50] and Rob Fusco of Most Precious Blood.