======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '292'
                                          'artist'  'The Stooges'
                                     'text_people'  ''
                                         'release'  'Fun House'
                                           'title'  'L.A. Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['proto punk', 'punk rock', 'rock', 'punk', 'garage rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '7'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '143.112'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Fun House'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'L.A. Blues'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Stooges'
'TPE2' (Band/orchestra/accompaniment)               'The Stooges'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/7'
'TSO2'                                              'Stooges, The'
'TSOP' (Performer sort order)                       'Stooges, The'
'TXXX:ASIN'                                         'B000BD8238'
'TXXX:BARCODE'                                      '9325583027826'
'TXXX:MusicBrainz Album Artist Id'                  '794c6bf2-3241-416f-9b8f-24e2d84a1c4b'
'TXXX:MusicBrainz Album Id'                         'd06364eb-3997-32a5-83d9-96b948967203'
'TXXX:MusicBrainz Album Release Country'            'AU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '794c6bf2-3241-416f-9b8f-24e2d84a1c4b'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['proto punk', 'punk rock', 'rock', 'punk', 'garage rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.729316'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a1aacbbf-6af6-432c-a863-f357509b4f54')

========================== row from database ==========================
                                              'id'  1419936
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/The Stooges/The Stooges - L.A. Blues.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  292
                                           'genre'  rock-gr-punk
                                        'filesize'  9367686
                                           'mtime'  1622659214
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner rock gr punk
                                      'tag_artist'  The Stooges
                                     'tag_release'  Fun House
                                       'tag_title'  L.A. Blues
                                             'bpm'  143.112
                                    'search_title'  'a':2 'blues':4 'l':1 'la':3
                                   'search_artist'  'stooges':2 'the':1
                                  'search_release'  'fun':1 'house':2
                                     'search_rest'  'garage':2 'gr':6 'punk':1 'rock':5 'stoner':4 'surf':3
                                    'search_combo'  'a':2A 'blues':4A 'fun':7C 'garage':10 'gr':14 'house':8C 'l':1A 'la':3A 'punk':9 'rock':13 'stoner':12 'stooges':6B 'surf':11 'the':5B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['proto punk', 'punk rock', 'rock', 'punk', 'garage rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659213.9116066  (2021-06-02 20:40:13)
                             'size'  9367686