======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '175'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  'The Bootleg Series, Vol. 1'
                                           'title'  'When The Ship Comes In'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['folk rock', 'rock', 'classic rock', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '105.642'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Bootleg Series, Vol. 1'
'TBPM' (BPM (beats per minute))                     '105.642'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'When The Ship Comes In'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '20'
'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:lastfmtags'                                   ['folk rock', 'rock', 'classic rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.03 dB'
'TXXX:replaygain_track_peak'                        '0.378908'

========================== row from database ==========================
                                              'id'  1422766
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bob Dylan/20 When The Ship Comes In.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  175
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4218101
                                           'mtime'  1636400723
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 20 ifs songwriter folk
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  The Bootleg Series, Vol. 1
                                       'tag_title'  When The Ship Comes In
                                             'bpm'  105.642
                                    'search_title'  'comes':4 'in':5 'ship':3 'the':2 'when':1
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  '1':7 'bootleg':2 'series':3,4 'the':1 'vol':5,6
                                     'search_rest'  '00singer':1 '20':4 'eos':3 'folk':6 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':15 '1':14C '20':18 'bob':6B 'bootleg':9C 'comes':4A 'dylan':7B 'eos':17 'folk':20 'ifs':19 'in':5A 'series':10C,11C 'ship':3A 'songwriter':16 'the':2A,8C 'vol':12C,13C 'when':1A
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'classic rock', 'folk', 'singer songwriter']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400723.1471097  (2021-11-08 20:45:23)
                             'size'  4218101