diff --git a/README.md b/README.md
index e9b9de7..239cd06 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,57 @@
 # Ziffers for Python 3.10+
 
-This repo is hosting an attempt at porting the [Ziffers](https://github.com/amiika/ziffers) numbered musical notation to Python 3.10+. This library is using [parsimonious](https://github.com/erikrose/parsimonious) for PEG parsing.
+This repo is hosting experimental parser for the [Ziffers](https://github.com/amiika/ziffers) numbered musical notation to Python 3.10+. This library is using lark lalr-1 parser and ebnf PEG for parsing the notation.
 
+## Supported environments
+
+Ziffers python supports following live coding and computer-aided composition environments:
+
+* [Sardine](https://github.com/Bubobubobubobubo/sardine)
+* [Music21](https://github.com/cuthbertLab/music21)
+
+# Status:
+
+**Supported:**
+```
+Pitches: -2 -1 0 1 2
+Chords: 0 024 2 246
+Note lengths: w 0 h 1 q 2 e 3 s 4
+Subdivision: [1 2 [3 4]]
+Decimal durations: 0.25 0 1 <0.333>2 3
+Octaves: ^ 0 ^ 1 _ 2 _ 3
+Escaped octave: <2> 1 <1>1<-2>3
+Named chords: i i i i
+Modal interchange (a-g): iiia ig ivf^7
+Randoms: % ? % ? % ?
+Random between: (-3,6)
+Repeat: [: 1 (2,6) 3 :4]
+Repeat cycles: [: <q e> (1,4) <(2 3) (3 (1,7))> :]
+Lists: h 1 q(0 1 2 3) 2
+List cycles: (: <q e> (1,4) <(2 3) (3 (1,7))> :)
+Loop cycles (for zloop or z0-z9): <0 <1 <2 <3 <4 5>>>>>
+Basic operations: (1 2 (3 4)+2)*2 ((1 2 3)+(0 9 13))-2 ((3 4 10)*(2 9 3))%7
+Product operations: (0 1 2 3)+(1 4 2 3) (0 1 2)-(0 2 1)+2
+Euclid cycles: (q1)<6,7>(q4 (e3 e4) q2) (q1)<6,7>(q4 q3 q2)
+Transformations: (0 1 2)<r> (0 1 2)<i>(-2 1)
+List assignation: A=(0 (1,6) 3) B=(3 ? 2) B A B B A
+Random repeat: (: 1 (2,6) 3 :4)
+```
+
+**New features:**
+```
+Shorthand for random repeat: (2 5):3 [2 5 1]:4 (1,6):6
+```
+
+**Partial support:**
+```
+Escape/eval: {10 11} {3+1*2} // {1.2 2.43} NOT SUPPORTED YET.
+Roman chords: i ii iii i^maj i^7
+```
+
+**TBD:**
+```
+Random selections: [q 1 2, q 3 e 4 6]
+Conditionals: 1 {%<0.5?3} 3 4 (: 1 2 {%<0.2?3:2} :3)
+Functions: (0 1 2 3){x%3==0?x-2:x+2}
+Polynomials: (-10..10){(x**3)*(x+1)%12}
+```
\ No newline at end of file
diff --git a/main.py b/main.py
index 22d14e3..0d769db 100644
--- a/main.py
+++ b/main.py
@@ -36,7 +36,6 @@ if __name__ == "__main__":
     }
     for ex in expressions:
         try:
-            print("Parsed: " + parse_expression(expressions[ex]).text)
+            print(f"{ex}: " + parse_expression(expressions[ex]).text)
         except Exception as e:
-            print(f"[red]Failed on {ex}[/red]")
-           # print(f"[red]Failed on {ex}[/red]: {str(e)[0:40]}...")
+            print(f"[red]Failed on {ex}[/red]: "+expressions[ex])