======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '298'
                                          'artist'  "Leaves' Eyes"
                                     'text_people'  ''
                                         'release'  'Meredead'
                                           'title'  'Empty Horizon'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['metal', 'female fronted metal', 'symphonic metal', 'female vocalists', "
 "'gothic metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '139.754'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'aquarius 73'
'TALB' (Album/Movie/Show title)                     'Meredead'
'TBPM' (BPM (beats per minute))                     '139.754'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Empty Horizon'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               "Leaves' Eyes"
'TRCK' (Track number/Position in set)               '9'
'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'                                   ['metal',
 'female fronted metal',
 'symphonic metal',
 'female vocalists',
 'gothic metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.329124'

========================== row from database ==========================
                                              'id'  1527216
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Leaves_ Eyes - Leaves Eyes/09. Leaves Eyes - Empty Horizon.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  298
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  11926913
                                           'mtime'  1620310301
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Leaves_ 09. eid metal doom gothic
                                      'tag_artist'  Leaves' Eyes
                                     'tag_release'  Meredead
                                       'tag_title'  Empty Horizon
                                             'bpm'  139.754
                                    'search_title'  'empty':1 'horizon':2
                                   'search_artist'  'eyes':3 'leaves':1,2
                                  'search_release'  'meredead':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '09':4,5 'doom':8 'eid':6 'gothic':9 'leaves':3 'metal':7
                                    'search_combo'  '00dwimp':7 '00metal':8 '09':10,11 'doom':14 'eid':12 'empty':1A 'eyes':5B 'gothic':15 'horizon':2A 'leaves':3B,4B,9 'meredead':6C 'metal':13
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['metal', 'female fronted metal', 'symphonic metal', 'female vocalists', 'gothic metal']
                                        'tag_date'  2011
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310301.1073399  (2021-05-06 16:11:41)
                             'size'  11926913