======================== unified (from filesystem) ========================
                                         'bitrate'  '227.503'
                                        'duration'  '177'
                                          'artist'  'Coal Chamber'
                                     'text_people'  ''
                                         'release'  'The Best of Coal Chamber'
                                           'title'  'Clock'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative metal', 'industrial', 'metal', 'nu metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '114.414'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Best of Coal Chamber'
'TBPM' (BPM (beats per minute))                     '114.414'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Clock'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Coal Chamber'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative metal', 'industrial', 'metal', 'nu metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.377714'

========================== row from database ==========================
                                              'id'  1393484
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Coal Chamber/The Best of Coal Chamber/Coal Chamber-The Best of Coal Chamber-Clock.mp3
                                         'working'  None
                                         'bitrate'  227
                                    'duration_sec'  177
                                           'genre'  eid-metal-nu
                                        'filesize'  5041440
                                           'mtime'  1620311071
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal eid metal nu
                                      'tag_artist'  Coal Chamber
                                     'tag_release'  The Best of Coal Chamber
                                       'tag_title'  Clock
                                             'bpm'  114.414
                                    'search_title'  'clock':1
                                   'search_artist'  'chamber':2 'coal':1
                                  'search_release'  'best':2 'chamber':5 'coal':4 'of':3 'the':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':3 'metal':4 'nu':5
                                    'search_combo'  '00dwimp':9 '00metal':10 'best':5C 'chamber':3B,8C 'clock':1A 'coal':2B,7C 'eid':11 'metal':12 'nu':13 'of':6C 'the':4C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['alternative metal', 'industrial', 'metal', 'nu metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311071.0738158  (2021-05-06 16:24:31)
                             'size'  5041440