Today’s the day!  The Record Store Day list is here, ramping up anticipation for the annual event which takes place at brick-and-mortar stores on Saturday, April 18.  As expected, Rhino is leading the RSD pack with a whopping slate of over 50 titles scheduled to arrive in independent shops everywhere.  The label has brought out many of its heaviest hitters, including David Bowie, The Doors, Crosby, Stills & Nash, Grateful Dead, Rod Stewart, Talking Heads, and Brian Wilson, among others.  Head over to RecordStoreDay.com for the complete list of participating stores (and…