======================== unified (from filesystem) ========================
                                         'bitrate'  '188.247'
                                        'duration'  '293'
                                          'artist'  'Tricky'
                                     'text_people'  ''
                                         'release'  'Maxinquaye'
                                           'title'  'Suffocated Love'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'electronic', 'downtempo', 'trip hop']"
                                     'discogstags'  "['electronic', 'leftfield', 'trip hop', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '12'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '107.265'
                                             'key'  '8A'
                                        'acoustid'  'baadd896-62fb-4c3c-be8d-5286f9ea57c6'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Maxinquaye'
'TBPM' (BPM (beats per minute))                     '107.265'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-02-20'
'TIT2' (Title/songname/content description)         'Suffocated Love'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Tricky'
'TPE2' (Band/orchestra/accompaniment)               'Tricky'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Island/4th & Broadway'
'TRCK' (Track number/Position in set)               '9/12'
'TSO2'                                              'Tricky'
'TSOP' (Performer sort order)                       'Tricky'
'TSRC' (ISRC (international standard recording code))  'GBANY9500053'
'TXXX:ASIN'                                         'B000001E7V'
'TXXX:Acoustid Id'                                  'baadd896-62fb-4c3c-be8d-5286f9ea57c6'
'TXXX:BARCODE'                                      '731452408921'
'TXXX:CATALOGNUMBER'                                '524 089-2/BRCD 610'
'TXXX:MusicBrainz Album Artist Id'                  '5bf64d94-efd9-4334-96fd-e6197b0b02b8'
'TXXX:MusicBrainz Album Id'                         'a2780fb0-8280-3b8e-9159-81613d63f71d'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5bf64d94-efd9-4334-96fd-e6197b0b02b8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'leftfield', 'trip hop', 'downtempo']
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'downtempo', 'trip hop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.65 dB'
'TXXX:replaygain_track_peak'                        '0.649356'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'920ee2ee-a8c7-4bd0-be28-85f05214a2b3')

========================== row from database ==========================
                                              'id'  720036
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/1995 - Maxinquaye/09 - Suffocated Love.mp3
                                         'working'  None
                                         'bitrate'  188
                                    'duration_sec'  293
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  6904386
                                           'mtime'  1620586577
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism 1995 09 hip hop or rnb or rap or turntablism
                                      'tag_artist'  Tricky
                                     'tag_release'  Maxinquaye
                                       'tag_title'  Suffocated Love
                                             'bpm'  107.265
                                    'search_title'  'love':2 'suffocated':1
                                   'search_artist'  'tricky':1
                                  'search_release'  'maxinquaye':1
                                     'search_rest'  '1995':5 'hip':6 'hiphop':1 'hop':7 'or':8 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  '1995':9 'hip':10 'hiphop':5 'hop':11 'love':2A 'maxinquaye':4C 'or':12 'rap':6 'rnb':7 'suffocated':1A 'tricky':3B 'turntablism':8
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'downtempo', 'trip hop']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'leftfield', 'trip hop', 'downtempo']

============================== file details ==============================
                                           'mtime'  1620586577.3429954  (2021-05-09 20:56:17)
                             'size'  6904386