======================== unified (from filesystem) ========================
                                         'bitrate'  '168.819'
                                        'duration'  '248'
                                          'artist'  'Queen'
                                     'text_people'  ''
                                         'release'  'Greatest Hits II'
                                           'title'  'Friends Will Be Friends'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['electronic', 'rock', 'synth-pop', 'arena rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '17'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '144.028'
                                             'key'  '9A'
                                        'acoustid'  '2eac4f5c-e897-489d-99c5-a6aa388a6804'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Hits II'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         'Friends Will Be Friends'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Queen'
'TPE2' (Band/orchestra/accompaniment)               'Queen'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '15/17'
'TSO2'                                              'Queen'
'TSOP' (Performer sort order)                       'Queen'
'TSRC' (ISRC (international standard recording code))  'GBCEE0100139/GBCEE8600007/GBUM71029635'
'TXXX:Acoustid Id'                                  '2eac4f5c-e897-489d-99c5-a6aa388a6804'
'TXXX:BARCODE'                                      '602547025883'
'TXXX:MusicBrainz Album Artist Id'                  '0383dadf-2a4e-4d10-a46a-e9e041da8eb3'
'TXXX:MusicBrainz Album Id'                         'e32f56e5-f999-4dfa-b273-951b765b1b93'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '0383dadf-2a4e-4d10-a46a-e9e041da8eb3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'synth-pop', 'arena rock']
'TXXX:lastfmtags'                                   ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.21 dB'
'TXXX:replaygain_track_peak'                        '0.684543'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f16412c7-6f8a-47f7-a41f-894b4194181b')

========================== row from database ==========================
                                              'id'  1412018
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Queen/Greatest Hits II/15 - Friends Will Be Friends.mp3
                                         'working'  None
                                         'bitrate'  168
                                    'duration_sec'  248
                                           'genre'  rock-cppex-classic
                                        'filesize'  5257883
                                           'mtime'  1636038792
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 15 rock cppex classic
                                      'tag_artist'  Queen
                                     'tag_release'  Greatest Hits II
                                       'tag_title'  Friends Will Be Friends
                                             'bpm'  144.028
                                    'search_title'  'be':3 'friends':1 'will':2
                                   'search_artist'  'queen':1
                                  'search_release'  'greatest':1 'hits':2 'ii':3
                                     'search_rest'  'classic':4 'classicprogpsy':1 'cppex':3 'rock':2
                                    'search_combo'  'be':3A 'classic':11 'classicprogpsy':8 'cppex':10 'friends':1A 'greatest':5C 'hits':6C 'ii':7C 'queen':4B 'rock':9 'will':2A
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  2014
                                     'discogstags'  ['electronic', 'rock', 'synth-pop', 'arena rock']

============================== file details ==============================
                                           'mtime'  1636038792.3729851  (2021-11-04 16:13:12)
                             'size'  5257883