How would you write an arpeggio that never stops the notes that are played . . . they just keep on ringing. E.g, in the example below, when the E is played in measure 1 beat 1, it continues ringing all the way up to when it is struck again, and then it rings some more. This also happens with every other note.
1 + 2 + 3 + 4 + 1 + 2 + 3 + 4 + E B F# G B F# G E B F# G B F# G
I'm sure it's been done before, seeing that guitars usually play arpeggios in this way.