======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '221'
                                          'artist'  'The Cure'
                                     'text_people'  ''
                                         'release'  'The Head on the Door'
                                           'title'  'The Blood'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'alternative', 'post punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '123.859'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Head on the Door'
'TBPM' (BPM (beats per minute))                     '123.859'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'The Blood'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cure'
'TRCK' (Track number/Position in set)               '3'
'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'                                   ['80s', 'new wave', 'alternative', 'post punk', 'rock']
'TXXX:original release date'                        ['1985', '2006']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.600072'

========================== row from database ==========================
                                              'id'  136750
                                            'path'  /data/Music/Bulk/00dwimp/The Cure/MBZ;#The Cure;#The Head on the Door;#03;#The Blood.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  221
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  3551287
                                           'mtime'  1620515566
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp MBZ;#The Cure;#The Door;#03;#The electronic we new wave post punk
                                      'tag_artist'  The Cure
                                     'tag_release'  The Head on the Door
                                       'tag_title'  The Blood
                                             'bpm'  123.859
                                    'search_title'  'blood':2 'the':1
                                   'search_artist'  'cure':2 'the':1
                                  'search_release'  'door':4 'head':2 'on':3 'the':1
                                     'search_rest'  '00dwimp':1 '03':11,14 'cure':6,8 'door':10,13 'electronic':16 'mbz':2,4 'new':18 'post':20 'punk':21 'the':3,5,7,9,12,15 'wave':19 'we':17
                                    'search_combo'  '00dwimp':9 '03':19,22 'blood':2A 'cure':4B,14,16 'door':8C,18,21 'electronic':24 'head':6C 'mbz':10,12 'new':26 'on':7C 'post':28 'punk':29 'the':1A,3B,5C,11,13,15,17,20,23 'wave':27 'we':25
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'new wave', 'alternative', 'post punk', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620515565.992526  (2021-05-09 01:12:45)
                             'size'  3551287