======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '165'
                                          'artist'  'Mustach'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Down in Black'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', "
 "'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['stoner rock', 'hard rock', 'swedish', 'rock', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '10'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '127.524'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '127.524'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Down in Black'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mustach'
'TRCK' (Track number/Position in set)               '01/10'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.91, 128 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['stoner rock', 'hard rock', 'swedish', 'rock', 'heavy metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.63 dB'
'TXXX:replaygain_track_peak'                        '0.571973'

========================== row from database ==========================
                                              'id'  1302978
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/Mustasch - Down In Black.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  165
                                           'genre'  rock-pop
                                        'filesize'  2656256
                                           'mtime'  1620392802
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock Mustasch In rock pop
                                      'tag_artist'  Mustach
                                     'tag_release'  None
                                       'tag_title'  Down in Black
                                             'bpm'  127.524
                                    'search_title'  'black':3 'down':1 'in':2
                                   'search_artist'  'mustach':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'in':5 'mustasch':4 'pop':6 'rock':3 'swedish':2
                                    'search_combo'  '00poprockelectronic':5 'black':3A 'down':1A 'in':2A,9 'mustach':4B 'mustasch':8 'pop':10 'rock':7 'swedish':6
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['stoner rock', 'hard rock', 'swedish', 'rock', 'heavy metal']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392802.3862238  (2021-05-07 15:06:42)
                             'size'  2656256