======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '185'
                                          'artist'  'The Mobile Whorehouse'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Kamikaze Baby'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['swedish', 'freddie wadling', 'under 2000 listeners', 'alexander hacke', "
 "'rock']")
                                     'discogstags'  "['alternative rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '92.475'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '92.475'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TIT2' (Title/songname/content description)         'Kamikaze Baby'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '185626'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mobile Whorehouse'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['alternative rock', 'rock']
'TXXX:lastfmtags'                                   ['swedish',
 'freddie wadling',
 'under 2000 listeners',
 'alexander hacke',
 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.469391'

========================== row from database ==========================
                                              'id'  1359289
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/The Mobile Whorehouse - Kamikaze Baby.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  185
                                           'genre'  rock-pop
                                        'filesize'  2971520
                                           'mtime'  1620392808
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock rock pop
                                      'tag_artist'  The Mobile Whorehouse
                                     'tag_release'  None
                                       'tag_title'  Kamikaze Baby
                                             'bpm'  92.475
                                    'search_title'  'baby':2 'kamikaze':1
                                   'search_artist'  'mobile':2 'the':1 'whorehouse':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rock':3 'swedish':2
                                    'search_combo'  '00poprockelectronic':6 'baby':2A 'kamikaze':1A 'mobile':4B 'pop':9 'rock':8 'swedish':7 'the':3B 'whorehouse':5B
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'freddie wadling', 'under 2000 listeners', 'alexander hacke', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['alternative rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620392808.0840085  (2021-05-07 15:06:48)
                             'size'  2971520