presenting it in a musical way with proper pitch, pace, rhythm and timing.this statement really is utter, utter nonsense.
I don't doubt for a minute that a nice hifi will sound very, very good - and do the best job possible of reproducing whatever has been recorded to vinyl or CD. I have no doubt that you stand a better chance of hearing detail on certain instruments that will be lost when listening on a transistor radio
but the pitch of a note is the pitch of the note, the rhythmn is the rhythmn and no expensive speakers are going to change that
Whilst I agree with much of what you're saying, and there is a lot of airy fairy bollocks written about hifi, I do think a good loudspeaker can carry a rhythm better than a bad one...crucially, via better control of cone movement. This will be particularly evident in lower frequencies, where a really good low frequency driver will be tight, deep & fast (steady there!), and a bad one will be flabby, unable to recover from one note before another note arrives. In fact, kind of like the difference between a crappy/badly set up suspension fork and a good one...oooh see what I did there? 
