======================== unified (from filesystem) ========================
                                         'bitrate'  '166.517'
                                        'duration'  '205'
                                          'artist'  'Fleetwood Mac'
                                     'text_people'  ''
                                         'release'  'The Collection'
                                           'title'  'Watch Out'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'soft rock', 'rock', 'pop', 'classic rock']"
                                     'discogstags'  "['rock', 'blues', 'blues rock', 'country rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '20'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-blues'
                                             'bpm'  '103.378'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '2E0F3614'
'COMM:ID3v1 Comment:XXX'                            '2E0F3614'
'TALB' (Album/Movie/Show title)                     'The Collection'
'TBPM' (BPM (beats per minute))                     '103.378'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-blues'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Watch Out'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Fleetwood Mac'
'TRCK' (Track number/Position in set)               '16/20'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'blues', 'blues rock', 'country rock']
'TXXX:lastfmtags'                                   ['80s', 'soft rock', 'rock', 'pop', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.61 dB'
'TXXX:replaygain_track_peak'                        '0.646273'

========================== row from database ==========================
                                              'id'  1420752
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Fleetwood Mac/The Collection/Fleetwood Mac - Watch Out.mp3
                                         'working'  None
                                         'bitrate'  166
                                    'duration_sec'  205
                                           'genre'  rock-pop-early-blues
                                        'filesize'  4288153
                                           'mtime'  1620736622
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy rock pop early blues
                                      'tag_artist'  Fleetwood Mac
                                     'tag_release'  The Collection
                                       'tag_title'  Watch Out
                                             'bpm'  103.378
                                    'search_title'  'out':2 'watch':1
                                   'search_artist'  'fleetwood':1 'mac':2
                                  'search_release'  'collection':2 'the':1
                                     'search_rest'  'blues':5 'classicprogpsy':1 'early':4 'pop':3 'rock':2
                                    'search_combo'  'blues':11 'classicprogpsy':7 'collection':6C 'early':10 'fleetwood':3B 'mac':4B 'out':2A 'pop':9 'rock':8 'the':5C 'watch':1A
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'soft rock', 'rock', 'pop', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'blues', 'blues rock', 'country rock']

============================== file details ==============================
                                           'mtime'  1620736622.2520852  (2021-05-11 14:37:02)
                             'size'  4288153