======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '280'
                                          'artist'  'The Stone Roses'
                                     'text_people'  'Ian Brown/John Squire'
                                         'release'  'The Stone Roses'
                                           'title'  'Waterfall'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'madchester', 'britpop', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '103.642'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '13+FF8C1E13729785681CCA45AB4'
'COMM:iTunes_CDDB_IDs:eng'                          '13+FF8C1E13729785681CCA45AB4367F284+979133'
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'TALB' (Album/Movie/Show title)                     'The Stone Roses'
'TBPM' (BPM (beats per minute))                     '103.642'
'TCOM' (Composer)                                   'Ian Brown/John Squire'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1989'
'TENC' (Encoded by)                                 'iTunes v3.0.1'
'TIT2' (Title/songname/content description)         'Waterfall'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Stone Roses'
'TPE2' (Band/orchestra/accompaniment)               'The Stone Roses'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'madchester', 'britpop', 'alternative', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.09 dB'
'TXXX:replaygain_track_peak'                        '0.713753'

========================== row from database ==========================
                                              'id'  1256568
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Stone Roses/The Stone Roses_/The Stone Roses/04 waterfall.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  280
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  5620619
                                           'mtime'  1638554832
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Roses_ 04 waterfall ifs songwriter indie rock
                                      'tag_artist'  The Stone Roses
                                     'tag_release'  The Stone Roses
                                       'tag_title'  Waterfall
                                             'bpm'  103.642
                                    'search_title'  'waterfall':1
                                   'search_artist'  'roses':3 'stone':2 'the':1
                                  'search_release'  'roses':3 'stone':2 'the':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':6 'indie':7 'rock':8 'roses':4 'songwriter':2 'waterfall':5
                                    'search_combo'  '00singer':8 'eos':10 'ifs':13 'indie':14 'rock':15 'roses':4B,7C,11 'songwriter':9 'stone':3B,6C 'the':2B,5C 'waterfall':1A,12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'madchester', 'britpop', 'alternative', 'rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1638554831.900256  (2021-12-03 19:07:11)
                             'size'  5620619