======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '118'
                                          'artist'  '30 Seconds To Mars'
                                     'text_people'  ''
                                         'release'  'This Is War'
                                           'title'  '100 Suns'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'arena rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-pop-indie-emo'
                                             'bpm'  '142.809'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'This Is War'
'TBPM' (BPM (beats per minute))                     '142.809'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-indie-emo'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'dBpoweramp Release 13.3'
'TIT2' (Title/songname/content description)         '100 Suns'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               '30 Seconds To Mars'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5'
'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', 'arena rock', 'prog rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'alternative', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.66 dB'
'TXXX:replaygain_track_peak'                        '0.766693'

========================== row from database ==========================
                                              'id'  1361145
                                            'path'  /data/Music/Bulk/00poprockelectronic/30 Seconds To Mars/05 100 Suns.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  118
                                           'genre'  rock-pop-indie-emo
                                        'filesize'  4797332
                                           'mtime'  1622801896
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 05 rock pop indie emo
                                      'tag_artist'  30 Seconds To Mars
                                     'tag_release'  This Is War
                                       'tag_title'  100 Suns
                                             'bpm'  142.809
                                    'search_title'  '100':1 'suns':2
                                   'search_artist'  '30':1 'mars':4 'seconds':2 'to':3
                                  'search_release'  'is':2 'this':1 'war':3
                                     'search_rest'  '00poprockelectronic':1 'emo':5 'indie':4 'pop':3 'rock':2
                                    'search_combo'  '00poprockelectronic':10 '100':1A '30':3B 'emo':14 'indie':13 'is':8C 'mars':6B 'pop':12 'rock':11 'seconds':4B 'suns':2A 'this':7C 'to':5B 'war':9C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'alternative', 'rock']
                                        'tag_date'  2009
                                     'discogstags'  ['rock', 'alternative rock', 'arena rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1622801895.8427837  (2021-06-04 12:18:15)
                             'size'  4797332