Staves closer to one another

[Fibonacci Prower]

Hello, me again.

Is there a way to get the staves in lilypond to appear closer
together? The default separation seems excessive to me.
Also, since some of the staves I'm working with have lyrics (two
stanzas, one on top of the other), I would like to know if it's
possible to get the first stanza closer to the staff, and the second
closer to the first.

Thanks.

--
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chr ord(chop$0)-1)[$_].("\n")[++$i%72]}split//,unpack'B*',pack'H*',(
$P='F'x18)."8186078739E1F0F0E19FCF333319CCE6667383CF0733099E67E7F39"
."FCF3333218067E7F39FCF3333319E6666739F860787399E70F0E1$P"#Perl rulz