A Little Night Music: Perpetual Anticipation

Perpetual anticipation is good for the soul
 But it's bad for the heart (perpetual anticipation is good for the soul)
 It's very good for practicing self control (but it's bad for the heart)
 It's very good for morals
 But bad for morale (It's very good for practicing self control)
 It's very bad
 It can lead to going quite mad (It's very good for morals) (Perpetual anticipation)
 It's very good for reserve (but bad for morale) (is good for the soul but)
 And learning to do what one should (it's very bad) (it's bad for the heart)
 It's very good (it's very bad)
 Perpetual anticipation's a delicate art (perpetual anticipation's)
 Playing a role (a delicate art)
 Aching to start (playing a role)
 Keeping control
 While falling apart
 Perpetual anticipation is good for the soul (perpetual anticipation is good for the soul)
 But it's bad for the heart