update syntax, add megalet, update readme

README.md

@@ -1,14 +1,26 @@
-# Piston LP
+# Anny: Piston LP
 
-A long-ass work in progress by Anny
+A live-coded exploration of rhythm & self-reference over 8 movements, written throughout 2015 and performed at algoraves in the UK. Originally performed live @ Texture, Manchester, 12th November 2015. Album released 20th November 2015.
 
-(Formerly Anny FM; it seems somewhat anachronistic)
+_Anny is formerly Anny FM._
 
-## What is this?
+## Listen to the album!
 
-This `README` is work in progress. I'll tell you the rest later.
+- [Buy Piston LP on Bandcamp](http://anny.audio/album/piston-lp) (limited edition CD also available)
+- [Stream Piston LP on SoundCloud](https://soundcloud.com/anny-fm/piston-lp)
+
+## Source files
+
+`piston.tidal` is the full composition for Tidal 0.6 (also compatible with 0.7) and will be maintained long term.
+
+`piston.megalet.tidal` contains a single `let` directive that when eval'd with `C-c C-e` will initialize all variables used in the composition.
+
+`piston-notes.tidal` are notes to myself for reference in a live performance.
+
+## Sample attributions
+
+TBC (I gotta go look them up!)
 
 ## License
 
-Forthcoming.
-
+Album recording is copyright © Aneurin "Anny" Barker Snook 2015, but the source code and samples are all royalty free. Remix to your heart's content!