======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '196'
                                          'artist'  'UB40'
                                     'text_people'  ''
                                         'release'  'Labour of Love'
                                           'title'  'She Caught the Train'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'reggae', 'ska', 'british', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-pop'
                                             'bpm'  '88.438'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Labour of Love'
'TBPM' (BPM (beats per minute))                     '88.438'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-pop'
'TDRC' (Recording time)                             '1983'
'TIT2' (Title/songname/content description)         'She Caught the Train'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'UB40'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['80s', 'reggae', 'ska', 'british', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+4.28 dB'
'TXXX:replaygain_track_peak'                        '0.930559'

========================== row from database ==========================
                                              'id'  1297254
                                            'path'  /data/Music/Bulk/00poprockelectronic/album top 1000/0151 UB40 - Labour of Love I/Labour of Love-08-She Caught the Train.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  196
                                           'genre'  loc-style-reggae or dub or ska or dancehall-pop
                                        'filesize'  3145600
                                           'mtime'  1620525015
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic album top 1000 0151 I 08 loc style reggae or dub or ska or dancehall pop
                                      'tag_artist'  UB40
                                     'tag_release'  Labour of Love
                                       'tag_title'  She Caught the Train
                                             'bpm'  88.438
                                    'search_title'  'caught':2 'she':1 'the':3 'train':4
                                   'search_artist'  'ub40':1
                                  'search_release'  'labour':1 'love':3 'of':2
                                     'search_rest'  '00poprockelectronic':1 '0151':5 '1000':4 'album':2 'dancehall':13 'dub':11 'i':6 'loc':7 'or':10 'pop':14 'reggae':9 'ska':12 'style':8 'top':3
                                    'search_combo'  '00poprockelectronic':9 '0151':13 '1000':12 'album':10 'caught':2A 'dancehall':21 'dub':19 'i':14 'labour':6C 'loc':15 'love':8C 'of':7C 'or':18 'pop':22 'reggae':17 'she':1A 'ska':20 'style':16 'the':3A 'top':11 'train':4A 'ub40':5B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'reggae', 'ska', 'british', 'pop']
                                        'tag_date'  1983
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525015.2786777  (2021-05-09 03:50:15)
                             'size'  3145600