The Music and The Song

When did this piece started playing, I probably would never know.
I can hear my life as it echoes out in song.
The melody is faint and it is hard to sing to, but it plays on nonetheless.
Sometimes it is a bare and lonely melody that plays eerily in the still of the night.
Sometimes my song intertwines with someone elses song.
The union forms a beautiful harmony and the song goes on.
We try to to fill in the lyrics and we try to sing to the tunes.
Eventually our songs split apart, but the music goes on.
My song is of highs and lows, never in monotone.
Sometimes I crack singing in a falsetto pitch I can never hit
Sometimes the deep bass resonates, barely audible.
My song is a magnum opus built upon a skeletal tune
Events in my life strike certain strings that forms chords to my tune.
The chords ring out as the echoes meld into my melody.
There is no constant beat or rhythm to my song
The tempo speeds up and slows down without notice
It is a song of drunken stupor, of drug induced hallucination.
It is a song of infinite sadness, a song of pain.
It is a song of romantic love, of beauty and memories.
It is a song of infinite joy, a song of happiness.
The music fades into the background,
My song is sung in accapella.
Slowly my song fades out from the fore of day.
It is a tune for myself in the still of the night.
Watch me sway to my music and song.
It will never stop playing till the end of my time.