The Who en el Rock and Roll Circus de los Stones tocando A quick one

Increíble, ¿qué edad tenían? ¿17? Está la idea de hacer una historia, no entiendo la letra pero se ve que es una sucesión de momentos, que hay actuación, voces. Está también el factor Queen, diríamos, pero vivido con menos preciosismo, más crudo, más verídico. Lindísimo el escenario Stone de ese circus que parecía existir sólo en las revistas.

Claro, la genial Wikipedia pone todo en su lugar:

This is widely regarded by fans to have been a pivotal album for the group, due to the departure from the R&B / pop formula featured on the band's first release. Part of the marketing push for the album was a requirement that each band member should write at least two of the songs on it (though in fact Roger Daltrey only managed one), so this Who album is the least dominated by Pete Townshend's writing.

The album was also the band's first foray into the form of rock opera, with "A Quick One While He's Away", the title track of the LP, a nine-minute suite of song snippets telling a story of infidelity and reconciliation. (The Who would later go on to write and record the full scale rock operas Tommy and Quadrophenia).

Y también está bueno lo que dice uno de los comentaristas del video en You Tube!, Skeeterbag:

Rumors are that this Who's performance is why the Stones didn't release the Rock n' Roll Circus for so long: The Stones felt upstaged. Even though Mick and the boys do a great version of "Can't Always Get What You Want" and "Sympathy for the Devil" in their performance.

Funny thing is, The Who felt upstaged at the Monterey Pop Festival by Jimi Hendrix's "guitar burning" performance a few years prior. (I think my facts are right on all that)