From Kasabian drummer Ian Matthews to Goldfrapp lynchpin Will Gregory, a music which gets little UK attention beyond the Mercury Prize's token jazz nominee has dug a role in the mainstream's heart.
It's a mainstream, heart-on-its-sleeve blockbuster, the type of Christmas release that will play well into March of next year.
Some of its facets have broken through into the mainstream, but the heart of it definitely remains in the "sub" part of culture.
This year, unassuming Devon surfer Ben Howard triumphed at the Brits, bringing his emotive folk-influenced songs – inspired by his parents' vast collection of Bob Dylan, John Martyn, Jimi Hendrix and Simon and Garfunkel – to the mainstream, winning over the hearts of emotional young men and women, and bringing a raft of newcomers in his wake.
Most of us do not see the brutal parallel universe at the heart of the mainstream economy.
Overall it means to be the kind of art -- difficult, unsettling and out of the mainstream, but with an embracing heart -- that the play itself declares endangered.
Her undoubted talent was long fuelled by a determination to be placed where she deserved to be, firmly centre-stage, at the heart of the mainstream.
But what's really interesting is how their fan archetype – that nerdy, computer-club, Dungeons and Dragons-playing, comic-reading, sci-fi geek – has moved from the margins right into the very heart of the mainstream.
The free market hymnbook is required reading at a time of political and economic uncertainty, when the focus of its analysis pages is also at the heart of the mainstream news agenda.
Lorin Maazel – born less than 20 years after Mahler's death – first encountered his music in the early 1950s just as it was beginning its slow journey to the heart of the mainstream repertoire.
