<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '233'
                                          'artist'  'Nouvelle Vague'
                                     'text_people'  ''
                                         'release'  'Nouvelle Vague'
                                           'title'  'Marian'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['bossa nova', 'lounge', 'female vocalists', 'french', 'chillout']"
                                     'discogstags'  "['latin', 'pop', 'bossanova']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '13'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '108.1'
                                             'key'  '10B'
                                        'acoustid'  '3fd082cd-7dbc-4be1-88d0-f1dc2d457c28'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f17f0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1291557"/>
'PRIV:AverageLevel:("\x00\x00'                      PRIV(owner='AverageLevel', data=b'("\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Nouvelle Vague'
'TBPM' (BPM (beats per minute))                     '108.1'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-08-09'
'TIT2' (Title/songname/content description)         'Marian'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Nouvelle Vague'
'TPE2' (Band/orchestra/accompaniment)               'Nouvelle Vague'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Peacefrog Records'
'TRCK' (Track number/Position in set)               '7/13'
'TSO2'                                              'Nouvelle Vague'
'TSOP' (Performer sort order)                       'Nouvelle Vague'
'TSRC' (ISRC (international standard recording code))  'GBEWK0400025'
'TXXX:ASIN'                                         'B00018D3JQ'
'TXXX:Acoustid Id'                                  '3fd082cd-7dbc-4be1-88d0-f1dc2d457c28'
'TXXX:Artists'                                      'Nouvelle Vague'
'TXXX:BARCODE'                                      '689781205127'
'TXXX:CATALOGNUMBER'                                'PFG051CD'
'TXXX:MusicBrainz Album Artist Id'                  'b017a7ae-e5ee-4675-bb13-c83346134971'
'TXXX:MusicBrainz Album Id'                         'c936e12d-4e38-436f-9a1c-55453998d482'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b017a7ae-e5ee-4675-bb13-c83346134971'
'TXXX:MusicBrainz Release Group Id'                 'd16b3b05-6f30-3242-9544-dba1083eb21e'
'TXXX:MusicBrainz Release Track Id'                 '925776c6-39c6-31f8-8bf7-533d53399d52'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['latin', 'pop', 'bossanova']
'TXXX:lastfmtags'                                   ['bossa nova', 'lounge', 'female vocalists', 'french', 'chillout']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.366649'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'10a8ff3f-227f-4326-82a9-f26867058f13')

========================== row from database ==========================
                                              'id'  1291557
                                            'path'  /data/Music/Bulk/00poprockelectronic/Nouvelle Vague/Nouvelle Vague/Nouvelle Vague - 07 - Marianne.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  233
                                           'genre'  loc-eur-france
                                        'filesize'  9408644
                                           'mtime'  1623430506
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 Marianne loc eur france
                                      'tag_artist'  Nouvelle Vague
                                     'tag_release'  Nouvelle Vague
                                       'tag_title'  Marian
                                             'bpm'  108.1
                                    'search_title'  'marian':1
                                   'search_artist'  'nouvelle':1 'vague':2
                                  'search_release'  'nouvelle':1 'vague':2
                                     'search_rest'  '00poprockelectronic':1 'eur':4 'france':5 'loc':3 'marianne':2
                                    'search_combo'  '00poprockelectronic':6 'eur':9 'france':10 'loc':8 'marian':1A 'marianne':7 'nouvelle':2B,4C 'vague':3B,5C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['bossa nova', 'lounge', 'female vocalists', 'french', 'chillout']
                                        'tag_date'  2004
                                     'discogstags'  ['latin', 'pop', 'bossanova']

============================== file details ==============================
                                           'mtime'  1623430505.9304175  (2021-06-11 18:55:05)
                             'size'  9408644