Perfect moments of music?

i agree with affinityband: Paatos-téa (outro, gives me the chills every single time)
opeth- face of melinda (last vocal part, an immortal classic)
paatos have many memorable riffs: sensor (the groovy bass lead that changes into a synth solo with the coolest lead synth effect i have ever heard), the long piano/synth atmosphere outro that´s in stream if i remember correctly...
opeth- dirge for november (the outro, pure magic)
pain of salvation riffs are so perfectly arranged together so that makes it difficult to just pick a riff, everything about the album "Be" is a perfect a musical moment.
porcupine tree: how is your life today? (the psychotic factory synth lead).

um....i can´t possibly put up a list of all my perfect musical moments, but here´s what came up in my mind first.