======================== unified (from filesystem) ========================
                                         'bitrate'  '214.337'
                                        'duration'  '213'
                                          'artist'  'Madness'
                                     'text_people'  ''
                                         'release'  'One Step Beyond...'
                                           'title'  'Night Boat to Cairo'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'ska', 'pop', 'british']"
                                     'discogstags'  "['rock', 'ska']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '102.282'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'One Step Beyond...'
'TBPM' (BPM (beats per minute))                     '102.282'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'Night Boat to Cairo'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Madness'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'ska']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'ska', 'pop', 'british']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.556986'

========================== row from database ==========================
                                              'id'  1381830
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Madness/03- Night Boat To Cairo.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  213
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  5723632
                                           'mtime'  1620521819
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub 03 To loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  Madness
                                     'tag_release'  One Step Beyond...
                                       'tag_title'  Night Boat to Cairo
                                             'bpm'  102.282
                                    'search_title'  'boat':2 'cairo':4 'night':1 'to':3
                                   'search_artist'  'madness':1
                                  'search_release'  'beyond':3,4 'one':1 'step':2
                                     'search_rest'  '00reggae':1 'dancehall':9 'dub':2 'loc':4 'or':7 'reggae':6 'ska':8 'style':5 'to':3
                                    'search_combo'  '00reggae':10 'beyond':8C,9C 'boat':2A 'cairo':4A 'dancehall':18 'dub':11 'loc':13 'madness':5B 'night':1A 'one':6C 'or':16 'reggae':15 'ska':17 'step':7C 'style':14 'to':3A,12
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'ska', 'pop', 'british']
                                        'tag_date'  1979
                                     'discogstags'  ['rock', 'ska']

============================== file details ==============================
                                           'mtime'  1620521819.073113  (2021-05-09 02:56:59)
                             'size'  5723632