 Gravity inspired a 2003 album Spring Any Day Now by David Greenberg and David McGuinness with the Concerto Caledonia . Subtitled " Music of 18th century Scotland and elsewhere " , the album includes covers of two tracks from Gravity , " Spring Any Day Now " and " Norrgården Nyvla " , and a track from Frank Zappa 's Roxy & Elsewhere ( 1974 ) , " Echidna 's Arf ( Of You ) " . 
