normalize keys to rekobo on index

copyparty/mtag.py

@@ -8,7 +8,7 @@ import shutil
 import subprocess as sp
 
 from .__init__ import PY2, WINDOWS
-from .util import fsenc, fsdec
+from .util import fsenc, fsdec, REKOBO_LKEY
 
 if not PY2:
     unicode = str
@@ -151,6 +151,12 @@ class MTag(object):
                 v = v.split("/")[0].strip().lstrip("0")
                 ret[k] = v or 0
 
+        # normalize key notation to rkeobo
+        okey = ret.get("key")
+        if okey:
+            key = okey.replace(" ", "").replace("maj", "").replace("min", "m")
+            ret["key"] = REKOBO_LKEY.get(key.lower(), okey)
+
         return ret
 
     def compare(self, abspath):

copyparty/util.py

@@ -71,6 +71,43 @@ IMPLICATIONS = [
 ]
 
 
+REKOBO_KEY = {
+    v: ln.split(" ", 1)[0]
+    for ln in """
+1B 6d B
+2B 7d Gb F#
+3B 8d Db C#
+4B 9d Ab G#
+5B 10d Eb D#
+6B 11d Bb A#
+7B 12d F
+8B 1d C
+9B 2d G
+10B 3d D
+11B 4d A
+12B 5d E
+1A 6m Abm G#m
+2A 7m Ebm D#m
+3A 8m Bbm A#m
+4A 9m Fm
+5A 10m Cm
+6A 11m Gm
+7A 12m Dm
+8A 1m Am
+9A 2m Em
+10A 3m Bm
+11A 4m Gbm F#m
+12A 5m Dbm C#m
+""".strip().split(
+        "\n"
+    )
+    for v in ln.strip().split(" ")[1:]
+    if v
+}
+
+REKOBO_LKEY = {k.lower(): v for k, v in REKOBO_KEY.items()}
+
+
 class Counter(object):
     def __init__(self, v=0):
         self.v = v