OK, yes, I am THAT baby boomer, whose musical tastes (at times) are stuck somewhere in the early 1970s. I downloaded the new, remastered compilation of Led Zeppelin hits last night from iTunes. Called Mothership, it’s 24 of the songs I grew up on as a teenager, though I did have to download one of my favorites, “Going to California” separately. “Whole Lotta Love” is probably the first real hard rock song I owned, a 45 I wore out, putting aside all those Beatles, Beach Boys, Three Dog Night (and yes, that other 1969 hit) “Sugar Sugar” by the Archies. I remember going with my high school friend Rick to see Zeppelin in Madison Square Garden sometime in the mid-1970s, a concert so good I thought I’d never see a better one (though I did, once, an Emerson Lake and Palmer show at MSG around the same time. Might have been the company I kept.) And, yes, I still turn up “Stairway to Heaven” and can associate a clear memory from my teens with every song — though some I wouldn’t even tell my priest, though I have in private moments told my God. I wonder if, when I am really old, will they play Zeppelin in the nursing home?