======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '221'
                                          'artist'  'Deftones'
                                     'text_people'  ''
                                         'release'  'Adrenaline'
                                           'title'  'Root'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'metal', 'nu metal', 'rock']"
                                     'discogstags'  "['rock', 'nu metal', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '11'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '123.331'
                                             'key'  '9A'
                                        'acoustid'  '1e499ca4-4a7c-4cb2-afbd-d5dcf40a33dd'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Adrenaline'
'TBPM' (BPM (beats per minute))                     '123.331'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-10-03'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['vocal', 'Chi Cheng']])
'TIT2' (Title/songname/content description)         'Root'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '221100'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Deftones'
'TPE2' (Band/orchestra/accompaniment)               'Deftones'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Maverick/Warner Bros. Records'
'TRCK' (Track number/Position in set)               '6/11'
'TSO2'                                              'Deftones'
'TSOP' (Performer sort order)                       'Deftones'
'TXXX:ASIN'                                         'B000002N2Z'
'TXXX:Acoustid Id'                                  '1e499ca4-4a7c-4cb2-afbd-d5dcf40a33dd'
'TXXX:BARCODE'                                      '093624605423'
'TXXX:CATALOGNUMBER'                                '9 46054-2/9 46054-2'
'TXXX:MusicBrainz Album Artist Id'                  '7527f6c2-d762-4b88-b5e2-9244f1e34c46'
'TXXX:MusicBrainz Album Id'                         'd84c56e7-2bd7-4547-a62b-0cffce02e02e'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7527f6c2-d762-4b88-b5e2-9244f1e34c46'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'nu metal', 'alternative rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'metal', 'nu metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.509725'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'2258241d-9037-4cf6-915b-f354dc6b49f5')

========================== row from database ==========================
                                              'id'  1328701
                                            'path'  /data/Music/Bulk/00poprockelectronic/Deftones/Adrenaline/Deftones - Root.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  221
                                           'genre'  eid-metal-nu
                                        'filesize'  3543344
                                           'mtime'  1620311103
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic eid metal nu
                                      'tag_artist'  Deftones
                                     'tag_release'  Adrenaline
                                       'tag_title'  Root
                                             'bpm'  123.331
                                    'search_title'  'root':1
                                   'search_artist'  'deftones':1
                                  'search_release'  'adrenaline':1
                                     'search_rest'  '00poprockelectronic':1 'eid':2 'metal':3 'nu':4
                                    'search_combo'  '00poprockelectronic':4 'adrenaline':3C 'deftones':2B 'eid':5 'metal':6 'nu':7 'root':1A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'metal', 'nu metal', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'nu metal', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1620311102.6660233  (2021-05-06 16:25:02)
                             'size'  3543344