After a couple of years of relentless touring, Humble Pie capitalized on their loyal U.S. following to capture the market with this, their fifth studio album. Although lead guitarist Peter Frampton was replaced by Clem Clemson – an excellent player – the band remained essentially the same. Led by singer/guitarist Steve Marriott's soulful wail, the group enjoyed a huge hit from this record, "30 Days in the Hole" – the track which defined the Pie's not-so-subtle appeal. The rest of the record is equally funky and intriguing. Stephen Stills guests on "Road Runner 'G' Jam," playing some nasty Hammond organ fills. In the end, though, the group defined themselves as the undisputed leaders of the boogie movement in the early 1970s, as a band.
Who says you can't make a great record in one day – or night, as the case may be? The Trinity Session was recorded in one night using one microphone, a DAT recorder, and the wonderful acoustics of the Holy Trinity in Toronto. Interestingly, it's the album that broke the Cowboy Junkies in the United States for their version of "Sweet Jane," which included the lost verse. It's far from the best cut here, though. There are other covers, such as Margo Timmins' a cappella read of the traditional "Mining for Gold," a heroin-slow version of Hank Williams' classic "I'm So Lonesome I Could Cry," "Dreaming My Dreams With You" (canonized by Waylon Jennings), and a radical take of the Patsy Cline classic "Walkin' After Midnight" that closes the disc. Those few who had heard the band's previous album, Whites Off Earth Now!!, were aware that, along with Low, the Cowboy Junkies were the only band at the time capable of playing slower than Neil Young and Crazy Horse – and without the ear-threatening volume.