[1] Holfelder first began his YouTube channel along with his popular "Major to Minor" series in April 2014 when he uploaded an A cappella minor-key rendition of "The Star-Spangled Banner."
[1] On August 5, 2014, Holfelder's minor-key version of "Amazing Grace" was featured during the intro to the season 10 finale of the popular The Discovery Channel show, Deadliest Catch.
[5] In December 2015, popular YouTuber Kurt Hugo Schneider directed a music video for Holfelder's minor-key version of Mariah Carey's "All I Want For Christmas Is You".
Within a week of being uploaded, the video received over 3.5 million views and social media shares from various celebrities, including Ashton Kutcher,[6] George Takei,[7] and Lil Wayne.
[8] On October 30, 2017, Holfelder's minor-key arrangement of "Every Breath You Take" by The Police was performed by the Dancing With The Stars band during Frankie Muniz and Witney Carson's contemporary routine.