======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '97'
                                          'artist'  'Yann Tiersen'
                                     'text_people'  ''
                                         'release'  'Goodbye Lenin'
                                           'title'  'Childhood (1)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'soundtrack', 'piano', 'classical', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '111.394'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Goodbye Lenin'
'TBPM' (BPM (beats per minute))                     '111.394'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Childhood (1)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yann Tiersen'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'soundtrack', 'piano', 'classical', 'french']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.27 dB'
'TXXX:replaygain_track_peak'                        '0.989314'

========================== row from database ==========================
                                              'id'  258075
                                            'path'  /data/Music/Bulk/0soundtrack/Yann Tiersen/Goodbye Lenin/MBZ;#Yann Tiersen;#Goodbye Lenin;#03;#Childhood (1).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  97
                                           'genre'  soundtrack-video
                                        'filesize'  2338720
                                           'mtime'  1642081695
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack MBZ;#Yann Tiersen;#Goodbye Lenin;#03;#Childhood soundtrack video
                                      'tag_artist'  Yann Tiersen
                                     'tag_release'  Goodbye Lenin
                                       'tag_title'  Childhood (1)
                                             'bpm'  111.394
                                    'search_title'  '1':2,3 'childhood':1
                                   'search_artist'  'tiersen':2 'yann':1
                                  'search_release'  'goodbye':1 'lenin':2
                                     'search_rest'  '03':11,14 '0soundtrack':1 'childhood':12,15 'goodbye':7,9 'lenin':10,13 'mbz':2,4 'soundtrack':16 'tiersen':6,8 'video':17 'yann':3,5
                                    'search_combo'  '03':18,21 '0soundtrack':8 '1':2A,3A 'childhood':1A,19,22 'goodbye':6C,14,16 'lenin':7C,17,20 'mbz':9,11 'soundtrack':23 'tiersen':5B,13,15 'video':24 'yann':4B,10,12
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['instrumental', 'soundtrack', 'piano', 'classical', 'french']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642081695.358712  (2022-01-13 14:48:15)
                             'size'  2338720