RFE: Real-time support

[DBraun]

Real-time support like https://github.com/stefanobazzi/guitarboard

We might need to do #45 as a stepping stone.

[ThatOtherAndrew]

Hello, sorry to pester - is there any update on this? I've got an application where real-time support or close-to-realtime (by rendering in "chunks" and rendering ahead while previous chunks are being played back) would be very important, and I can't find any other library / project which offers that currently.

Alternatively, is there any way to render from some non-start point in time onwards if I was to give the chunk approach a shot (e.g. rendering only bars 4-8)?