======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '234'
                                          'artist'  '30 Seconds To Mars'
                                     'text_people'  ''
                                         'release'  'A Beautiful Lie'
                                           'title'  'Hunter'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'hard rock', 'grunge']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '106.308'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'A Beautiful Lie'
'TBPM' (BPM (beats per minute))                     '106.308'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Hunter'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               '30 Seconds To Mars'
'TRCK' (Track number/Position in set)               '12'
'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:discogstags'                                  ['rock', 'alternative rock', 'hard rock', 'grunge']
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'alternative', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.450860'

========================== row from database ==========================
                                              'id'  1305467
                                            'path'  /data/Music/Bulk/00poprockelectronic/30 Seconds To Mars/12-30_seconds_to_mars-hunter-h8me.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  234
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  5635623
                                           'mtime'  1637330356
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 12 30_seconds_to_mars hunter h8me ifs songwriter indie rock
                                      'tag_artist'  30 Seconds To Mars
                                     'tag_release'  A Beautiful Lie
                                       'tag_title'  Hunter
                                             'bpm'  106.308
                                    'search_title'  'hunter':1
                                   'search_artist'  '30':1 'mars':4 'seconds':2 'to':3
                                  'search_release'  'a':1 'beautiful':2 'lie':3
                                     'search_rest'  '00poprockelectronic':1 '30':2 'h8me':7 'hunter':6 'ifs':8 'indie':10 'mars':5 'rock':11 'seconds':3 'songwriter':9 'to':4
                                    'search_combo'  '00poprockelectronic':9 '30':2B,10 'a':6C 'beautiful':7C 'h8me':15 'hunter':1A,14 'ifs':16 'indie':18 'lie':8C 'mars':5B,13 'rock':19 'seconds':3B,11 'songwriter':17 'to':4B,12
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'alternative', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'alternative rock', 'hard rock', 'grunge']

============================== file details ==============================
                                           'mtime'  1637330356.4372888  (2021-11-19 14:59:16)
                             'size'  5635623