======================== unified (from filesystem) ========================
                                         'bitrate'  '192.003'
                                        'duration'  '375'
                                          'artist'  'Jon & Vangelis'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'One More Time'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new age', 'progressive rock', 'art rock', 'electronic', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;electronic;rock-cppex'
                                             'bpm'  '125.006'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'electronic', 'rock-cppex']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'One More Time'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jon & Vangelis'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new age', 'progressive rock', 'art rock', 'electronic', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.18 dB'
'TXXX:replaygain_track_peak'                        '0.864386'

========================== row from database ==========================
                                              'id'  1322901
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Best of Jon & Vangelis/04 One More Time.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  375
                                           'genre'  rock-cppex-progressive;electronic;rock-cppex
                                        'filesize'  9023056
                                           'mtime'  1636914447
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic The Best of 04 rock cppex progressive;electronic;rock cppex
                                      'tag_artist'  Jon & Vangelis
                                     'tag_release'  None
                                       'tag_title'  One More Time
                                             'bpm'  125.006
                                    'search_title'  'more':2 'one':1 'time':3
                                   'search_artist'  'jon':1 'vangelis':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'best':3 'cppex':6 'electronic':8,11 'of':4 'progressive':7,10 'rock':5,9,12 'the':2
                                    'search_combo'  '00poprockelectronic':6 'best':8 'cppex':11 'electronic':13,16 'jon':4B 'more':2A 'of':9 'one':1A 'progressive':12,15 'rock':10,14,17 'the':7 'time':3A 'vangelis':5B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['new age', 'progressive rock', 'art rock', 'electronic', 'ambient']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636914446.8640044  (2021-11-14 19:27:26)
                             'size'  9023056