Cross-scheme experimentation from a few weeks ago

Sing out, whistle a tune for the world's end:
it rings in echoes, ripples and then fades,
like small things dropped into a well and watched
until they're gone. Zing! Beats like bent lightning bolts,
jagged, unsure, strings sent across a line
in different ways; sent strings, crossed messengers,
the lyric bent and limed, zinged in weird ways.
In a well-mannered way, the things behave
and then watch it all fall. The bells ring tolls,
end everything. Ragnarok. Muses, sing.