======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '257'
                                          'artist'  'The Flaming Lips'
                                     'text_people'  ''
                                         'release'  'The Soft Bulletin'
                                           'title'  "Waitin' for a Superman"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
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 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-vocals-2', 'q-mixbeat-1', "
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                                      'lastfmtags'  "['indie', 'alternative rock', 'alternative', 'indie rock', 'rock']"
                                     'discogstags'  "['electronic', 'rock', 'experimental', 'indie rock', 'psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '14'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '85.3'
                                             'key'  '6B'
                                        'acoustid'  'ac7a25a0-d600-4b9b-b4d4-9ac3e20c38f0'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Soft Bulletin'
'TBPM' (BPM (beats per minute))                     '85.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         "Waitin' for a Superman"
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '257436'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'The Flaming Lips'
'TPE2' (Band/orchestra/accompaniment)               'The Flaming Lips'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Warner Records'
'TRCK' (Track number/Position in set)               '8/14'
'TSO2'                                              'Flaming Lips, The'
'TSOP' (Performer sort order)                       'Flaming Lips, The'
'TSRC' (ISRC (international standard recording code))  'USWB11700549/USWB19900169'
'TXXX:Acoustid Id'                                  'ac7a25a0-d600-4b9b-b4d4-9ac3e20c38f0'
'TXXX:Artists'                                      'The Flaming Lips'
'TXXX:BARCODE'                                      '093624911807'
'TXXX:MusicBrainz Album Artist Id'                  '1f43d76f-8edf-44f6-aaf1-b65f05ad9402'
'TXXX:MusicBrainz Album Id'                         '85687660-5f99-4e14-b0bc-7943bbb1abe8'
'TXXX:MusicBrainz Album Release Country'            'DZ'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '1f43d76f-8edf-44f6-aaf1-b65f05ad9402'
'TXXX:MusicBrainz Release Group Id'                 '1a021034-95d1-3a2d-bdca-73b25e455e49'
'TXXX:MusicBrainz Release Track Id'                 '8bcf64fa-5a14-4124-8f71-4dc23f10cc72'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'experimental', 'indie rock', 'psychedelic rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative rock', 'alternative', 'indie rock', 'rock']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.38 dB'
'TXXX:replaygain_track_peak'                        '0.433708'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f06ce647-2f79-4415-9251-acb74cc26fa8')

========================== row from database ==========================
                                              'id'  1510003
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Flaming Lips/The Soft Bulletin/The Flaming Lips - 07 Waitin_ For A Superman.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  257
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  6250285
                                           'mtime'  1638554818
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 07 Waitin_ For A ifs songwriter indie rock
                                      'tag_artist'  The Flaming Lips
                                     'tag_release'  The Soft Bulletin
                                       'tag_title'  Waitin' for a Superman
                                             'bpm'  85.3
                                    'search_title'  'a':4 'for':3 'superman':5 'waitin':1,2
                                   'search_artist'  'flaming':2 'lips':3 'the':1
                                  'search_release'  'bulletin':3 'soft':2 'the':1
                                     'search_rest'  '00singer':1 'a':6 'eos':3 'for':5 'ifs':7 'indie':8 'rock':9 'songwriter':2 'waitin':4
                                    'search_combo'  '00singer':12 'a':4A,17 'bulletin':11C 'eos':14 'flaming':7B 'for':3A,16 'ifs':18 'indie':19 'lips':8B 'rock':20 'soft':10C 'songwriter':13 'superman':5A 'the':6B,9C 'waitin':1A,2A,15
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'Q-PIANO-2', 'q-mixbeat-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative rock', 'alternative', 'indie rock', 'rock']
                                        'tag_date'  1990
                                     'discogstags'  ['electronic', 'rock', 'experimental', 'indie rock', 'psychedelic rock']

============================== file details ==============================
                                           'mtime'  1638554817.6318982  (2021-12-03 19:06:57)
                             'size'  6250285