======================== unified (from filesystem) ========================
                                         'bitrate'  '246.493'
                                        'duration'  '245'
                                          'artist'  'Gipsy Kings'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Moorea'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['guitar', 'world', 'flamenco', 'latin', 'spanish']"
                                     'discogstags'  "['latin', 'flamenco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '18'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '101'
                                             'key'  '11A'
                                        'acoustid'  'bb9424b1-d32e-48f0-a59b-6820d9e77e62'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '101'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TDOR' (Original release time)                      '1994'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Moorea'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Gipsy Kings'
'TPE2' (Band/orchestra/accompaniment)               'Gipsy Kings'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sony Music'
'TRCK' (Track number/Position in set)               '7/18'
'TSO2'                                              'Gipsy Kings'
'TSOP' (Performer sort order)                       'Gipsy Kings'
'TSRC' (ISRC (international standard recording code))  'GBARL0700390/USNO18884503'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:ASIN'                                         'B000025EQ8'
'TXXX:Acoustid Id'                                  'bb9424b1-d32e-48f0-a59b-6820d9e77e62'
'TXXX:Artists'                                      'Gipsy Kings'
'TXXX:AverageLevel'                                 '7035'
'TXXX:BARCODE'                                      '5099747724220'
'TXXX:CATALOGNUMBER'                                'COL 477242 2'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:MusicBrainz Album Artist Id'                  '44a7f7d5-79df-4f44-8f5e-02dfc0626904'
'TXXX:MusicBrainz Album Id'                         '924d3b50-a596-3246-a5e0-0423141d568b'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '44a7f7d5-79df-4f44-8f5e-02dfc0626904'
'TXXX:MusicBrainz Release Group Id'                 '9501e60d-8e7c-3cf8-b5b1-cb2dabad5913'
'TXXX:MusicBrainz Release Track Id'                 'dae278c0-fe55-3327-8481-7fcb000160d9'
'TXXX:PeakValue'                                    '32673'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:WM/EncodingTime'                              '18446744073220136960'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/UniqueFileIdentifier'                      ';'
'TXXX:WM/Year'                                      '2008'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '11.0.5721.5145'
'TXXX:discogstags'                                  ['latin', 'flamenco']
'TXXX:lastfmtags'                                   ['guitar', 'world', 'flamenco', 'latin', 'spanish']
'TXXX:originalyear'                                 '1994'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.30 dB'
'TXXX:replaygain_track_peak'                        '0.576911'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e2c4f2ff-7ea6-41f4-bbe6-16c844e1fdd4')

========================== row from database ==========================
                                              'id'  1249764
                                            'path'  /data/Music/Bulk/00localcharacter/Gipsy Kings - gypsy/07 Nummer 7.wma.mp3
                                         'working'  None
                                         'bitrate'  246
                                    'duration_sec'  245
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  7638817
                                           'mtime'  1620528459
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter gypsy 07 Nummer 7.wma loc style gypsy balkan klezmer;mi brass
                                      'tag_artist'  Gipsy Kings
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Moorea
                                             'bpm'  101.0
                                    'search_title'  'moorea':1
                                   'search_artist'  'gipsy':1 'kings':2
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '7':3 '7wma':5 'balkan':8 'brass':13 'gypsy':1 'klezmer':9,11 'loc':6 'mi':10,12 'nummer':2 'style':7 'wma':4
                                    'search_combo'  '7':8 '7wma':10 'balkan':13 'brass':18 'gipsy':2B 'greatest':4C 'gypsy':6 'hits':5C 'kings':3B 'klezmer':14,16 'loc':11 'mi':15,17 'moorea':1A 'nummer':7 'style':12 'wma':9
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'world', 'flamenco', 'latin', 'spanish']
                                        'tag_date'  1994
                                     'discogstags'  ['latin', 'flamenco']

============================== file details ==============================
                                           'mtime'  1620528458.7697573  (2021-05-09 04:47:38)
                             'size'  7638817