======================== unified (from filesystem) ========================
                                         'bitrate'  '186.238'
                                        'duration'  '36'
                                          'artist'  'Tacere'
                                     'text_people'  ''
                                         'release'  'Beautiful Darkness'
                                           'title'  'Beyond Silence'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['power metal', 'finnish', 'female fronted metal', 'gothic metal', 'melodic "
 "metal', 'symphonic metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-symphonic'
                                             'bpm'  '137.385'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beautiful Darkness'
'TBPM' (BPM (beats per minute))                     '137.385'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-symphonic'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Beyond Silence'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tacere'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['power metal',
 'finnish',
 'female fronted metal',
 'gothic metal',
 'melodic metal',
 'symphonic metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.397438'

========================== row from database ==========================
                                              'id'  1394635
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Tacere/10_beyond_silence-cmg.mp3
                                         'working'  None
                                         'bitrate'  186
                                    'duration_sec'  36
                                           'genre'  eid-metal-symphonic
                                        'filesize'  850675
                                           'mtime'  1620311629
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 10_beyond_silence cmg eid metal symphonic
                                      'tag_artist'  Tacere
                                     'tag_release'  Beautiful Darkness
                                       'tag_title'  Beyond Silence
                                             'bpm'  137.385
                                    'search_title'  'beyond':1 'silence':2
                                   'search_artist'  'tacere':1
                                  'search_release'  'beautiful':1 'darkness':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '10':3 'beyond':4 'cmg':6 'eid':7 'metal':8 'silence':5 'symphonic':9
                                    'search_combo'  '00dwimp':6 '00metal':7 '10':8 'beautiful':4C 'beyond':1A,9 'cmg':11 'darkness':5C 'eid':12 'metal':13 'silence':2A,10 'symphonic':14 'tacere':3B
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['power metal', 'finnish', 'female fronted metal', 'gothic metal', 'melodic metal', 'symphonic metal']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311629.3428288  (2021-05-06 16:33:49)
                             'size'  850675