======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '171'
                                          'artist'  'Messer Chups'
                                     'text_people'  'O.Gitarkin'
                                         'release'  'Vamp Babes'
                                           'title'  'Gass-blood'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'russian', 'psychobilly', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic', 'rock', 'surf', 'future jazz', 'electro', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '18'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '100.906'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Vamp Babes'
'TBPM' (BPM (beats per minute))                     '100.906'
'TCOM' (Composer)                                   'O.Gitarkin'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Gass-blood'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Messer Chups'
'TPE2' (Band/orchestra/accompaniment)               'Messer Chups'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Solnze Records'
'TRCK' (Track number/Position in set)               '13/18'
'TSO2'                                              'Messer Chups'
'TSOP' (Performer sort order)                       'Messer Chups'
'TXXX:CATALOGNUMBER'                                'SCD 002'
'TXXX:MusicBrainz Album Artist Id'                  '050c59c3-12d7-4d7e-b890-9ebcf0caa85d'
'TXXX:MusicBrainz Album Id'                         '80e806e4-ee07-431c-b731-ec14ba1bae1a'
'TXXX:MusicBrainz Album Release Country'            'RU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '050c59c3-12d7-4d7e-b890-9ebcf0caa85d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'surf', 'future jazz', 'electro', 'experimental']
'TXXX:lastfmtags'                                   ['surf', 'russian', 'psychobilly', 'electronic', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.325345'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'661840d2-bc11-48d6-ae57-5218f22b60c1')

========================== row from database ==========================
                                              'id'  156789
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Messer Chups/2002 - Vamp Babes (192kbps)/13 - Gass-blood.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  171
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  4126739
                                           'mtime'  1620525375
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2002 (192kbps) 13 rock rockabilly or psychobilly
                                      'tag_artist'  Messer Chups
                                     'tag_release'  Vamp Babes
                                       'tag_title'  Gass-blood
                                             'bpm'  100.906
                                    'search_title'  'blood':2 'gass':1 'gassblood':3
                                   'search_artist'  'chups':2 'messer':1
                                  'search_release'  'babes':2 'vamp':1
                                     'search_rest'  '192kbps':2,3 '2002':1 'or':6 'psychobilly':7 'rock':4 'rockabilly':5
                                    'search_combo'  '192kbps':9,10 '2002':8 'babes':7C 'blood':2A 'chups':5B 'gass':1A 'gassblood':3A 'messer':4B 'or':13 'psychobilly':14 'rock':11 'rockabilly':12 'vamp':6C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'russian', 'psychobilly', 'electronic', 'experimental']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'rock', 'surf', 'future jazz', 'electro', 'experimental']

============================== file details ==============================
                                           'mtime'  1620525375.0590827  (2021-05-09 03:56:15)
                             'size'  4126739