Bands with great second albums

Another nod to Nantucket Sleighride.
 Standing stage side at a 1973 Mountain concert probably accounts for 10% of my hearing loss. 

I just realized that I had missed Dirt, Alice in Chains second disc. For me, artistically and musically it is beyond criticism and analysis. It was a moment in time, like all great recordings are, that will never be again, but thankfully will never be lost.

to whoever wrote the moody blues second album was in search of the lost chord you are incorrect since their second album was days of future passed.

other notable second albums

bill Evans - everybody digs
isaac Hayes- hot buttered soul
led Zeppelin- II
jethro Tull - stand up
steely dan - countdown to ecstasy 
santana - abraxas 
simon and garfunkel - sounds of silence
carole King - tapestry
laura nyro - eli and the 13th confession
Van Morrison - astral weeks
Bill withers - still bill

Just off the top of my head

Get your Wings / Aerosmith