spending six weeks on the 101–150 singles chart in Record World in December 1970 – January 1971 and then dropping off having peaked at #110. However upon "Woodstock's" January 1970 single release in Canada – where a 30% Canadian Content radio airplay quota was being phased in – the track received airplay at least partially because of its Canadian authorship, and assisted by airplay on Canadian radio stations with US listeners – notably CKLW, the Windsor ON station credited with the track's Canadian "breakout"- "Woodstock" accrued newfound US interest, debuting on the Billboard Hot 100 dated 6 March 1971 at #83 to rise to a #23 Hot 100 that May. In Canada "Woodstock" reached a #5 peak on the RPM 100 singles chart. But by the time of the North American success of Matthews Southern Comfort's "Woodstock", the band was no more: an October 1970 shake-up at MCA Records (UK) had resulted in Matthews Southern Comfort splitting with MCA – with the resultant cancellation of a US tour set to begin that November, the month of "Woodstock's" US single release – and in December 1970 Matthews had abruptly quit. Matthews would attribute his departure to the demands incumbent on his band's success with "Woodstock:" (Ian Matthews quote:)"It created all this peripheral stuff that took up my time. What would've been time learning to be a songwriter, it became time spent doing interviews, photographs, tours and appearances;" "It all came to a head after a dreadful soundcheck at Birmingham town hall. I left the building, walked down to the station, got on a train home and locked my door for a week." Matthews' debut solo album If You Saw Thro' My Eyes was a Vertigo Records release of 1 May 1971 while his former co-members – as Southern Comfort – would have three Harvest Records album releases before disbanding in 1972. In the UK, "Woodstock" would be the final single release by Matthews Southern Comfort – who had had two precedent non-charting UK singles – and "Woodstock" would remain Matthews' sole UK charting single: although previously a member of Fairport Convention Matthews had not been featured on their one charting single: "Si tu dois partir", and Matthews would never rank in the UK charts as a solo artist. In other territories two further tracks were issued as singles from the third and final Matthews Southern Comfort album Later That Same Year