diff --git a/copyparty/__main__.py b/copyparty/__main__.py
index 3aec892e..3dd826b7 100755
--- a/copyparty/__main__.py
+++ b/copyparty/__main__.py
@@ -750,7 +750,7 @@ def run_argparse(argv: list[str], formatter: Any, retry: bool) -> argparse.Names
     ap2.add_argument("--mtag-to", metavar="SEC", type=int, default=60, help="timeout for ffprobe tag-scan")
     ap2.add_argument("--mtag-mt", metavar="CORES", type=int, default=CORES, help="num cpu cores to use for tag scanning")
     ap2.add_argument("--mtag-v", action="store_true", help="verbose tag scanning; print errors from mtp subprocesses and such")
-    ap2.add_argument("--mtag-vv", action="store_true", help="debug mtp settings")
+    ap2.add_argument("--mtag-vv", action="store_true", help="debug mtp settings and mutagen/ffprobe parsers")
     ap2.add_argument("-mtm", metavar="M=t,t,t", type=u, action="append", help="add/replace metadata mapping")
     ap2.add_argument("-mte", metavar="M,M,M", type=u, help="tags to index/display (comma-sep.)",
         default="circle,album,.tn,artist,title,.bpm,key,.dur,.q,.vq,.aq,vc,ac,fmt,res,.fps,ahash,vhash")
diff --git a/copyparty/mtag.py b/copyparty/mtag.py
index 3e72d1d3..62312dde 100644
--- a/copyparty/mtag.py
+++ b/copyparty/mtag.py
@@ -395,6 +395,10 @@ class MTag(object):
             key = str(okey).replace(" ", "").replace("maj", "").replace("min", "m")
             ret["key"] = REKOBO_LKEY.get(key.lower(), okey)
 
+        if self.args.mtag_vv:
+            zl = " ".join("\033[36m{} \033[33m{}".format(k, v) for k, v in ret.items())
+            self.log("norm: {}\033[0m".format(zl), "90")
+
         return ret
 
     def compare(self, abspath: str) -> dict[str, Union[str, float]]:
@@ -446,6 +450,10 @@ class MTag(object):
         try:
             md = File(fsenc(abspath), easy=True)
             assert md
+            if self.args.mtag_vv:
+                for zd in (md.info.__dict__, dict(md.tags)):
+                    zl = ["\033[36m{} \033[33m{}".format(k, v) for k, v in zd.items()]
+                    self.log("mutagen: {}\033[0m".format(" ".join(zl)), "90")
             if not md.info.length and not md.info.codec:
                 raise Exception()
         except:
@@ -495,6 +503,12 @@ class MTag(object):
             return {}
 
         ret, md = ffprobe(abspath, self.args.mtag_to)
+
+        if self.args.mtag_vv:
+            for zd in (ret, dict(md)):
+                zl = ["\033[36m{} \033[33m{}".format(k, v) for k, v in zd.items()]
+                self.log("ffprobe: {}\033[0m".format(" ".join(zl)), "90")
+
         return self.normalize_tags(ret, md)
 
     def get_bin(
diff --git a/copyparty/up2k.py b/copyparty/up2k.py
index a100ced5..4f9bb97c 100644
--- a/copyparty/up2k.py
+++ b/copyparty/up2k.py
@@ -1565,13 +1565,13 @@ class Up2k(object):
                     # is audio, require non-audio?
                     if v.audio == "n":
                         if self.args.mtag_vv:
-                            t = "skip mtp {}; is no-audio, have audio"
+                            t = "skip mtp {}; want no-audio, got audio"
                             self.log(t.format(k), "90")
                         continue
                 # is not audio, require audio?
                 elif v.audio == "y":
                     if self.args.mtag_vv:
-                        t = "skip mtp {}; is audio, have no-audio"
+                        t = "skip mtp {}; want audio, got no-audio"
                         self.log(t.format(k), "90")
                     continue
 
@@ -1584,7 +1584,7 @@ class Up2k(object):
 
                 if not match:
                     if self.args.mtag_vv:
-                        t = "skip mtp {}; need file-ext {}, have {}"
+                        t = "skip mtp {}; want file-ext {}, got {}"
                         self.log(t.format(k, v.ext, abspath.rsplit(".")[-1]), "90")
                     continue