======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '242'
                                          'artist'  'Bob Dylan'
                                     'text_people'  'Traditional'
                                         'release'  'The Bootleg Series, Vol. 1'
                                           'title'  'He Was A Friend Of Mine'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['folk rock', 'rock', 'classic rock', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '127.685'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Bootleg Series, Vol. 1'
'TBPM' (BPM (beats per minute))                     '127.685'
'TCOM' (Composer)                                   'Traditional'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'He Was A Friend Of Mine'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TPE2' (Band/orchestra/accompaniment)               'Bob Dylan'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '2'
'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'
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'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.38 dB'
'TXXX:replaygain_track_peak'                        '0.606729'

========================== row from database ==========================
                                              'id'  1422768
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bob Dylan/02 He Was A Friend Of Mine.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  242
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  5834263
                                           'mtime'  1636400719
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 02 ifs songwriter folk
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  The Bootleg Series, Vol. 1
                                       'tag_title'  He Was A Friend Of Mine
                                             'bpm'  127.685
                                    'search_title'  'a':3 'friend':4 'he':1 'mine':6 'of':5 'was':2
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  '1':7 'bootleg':2 'series':3,4 'the':1 'vol':5,6
                                     'search_rest'  '00singer':1 'eos':3 'folk':5 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':16 '1':15C 'a':3A 'bob':7B 'bootleg':10C 'dylan':8B 'eos':18 'folk':20 'friend':4A 'he':1A 'ifs':19 'mine':6A 'of':5A 'series':11C,12C 'songwriter':17 'the':9C 'vol':13C,14C 'was':2A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11A
                                           '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-4', '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'  1636400719.2031152  (2021-11-08 20:45:19)
                             'size'  5834263