======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '223'
                                          'artist'  'Sinergy'
                                     'text_people'  ''
                                         'release'  'Suicide By My Side'
                                           'title'  'Suicide By My Side'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['power metal', 'female fronted metal', 'metal', 'finnish', 'heavy metal']"
                                     'discogstags'  "['hardcore', 'gabber', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '10'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-metal-power'
                                             'bpm'  '108.355'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000024F4 00002241 0000A844'
'COMM:iTunNORM:eng'                                 (' 000024F4 00002241 0000A844 0000AC35 00012C68 00009478 00008A61 00008B9E '
 '00008424 00025E53')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008B0 00000000009683C0 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '10+B37785EFCE0A85F81492CD05D9A09ADC+2226048'
'TALB' (Album/Movie/Show title)                     'Suicide By My Side'
'TBPM' (BPM (beats per minute))                     '108.355'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-power'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'iTunes v6.0.1.3'
'TIT2' (Title/songname/content description)         'Suicide By My Side'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sinergy'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '9/10'
'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'                                  ['hardcore', 'gabber', 'electronic']
'TXXX:lastfmtags'                                   ['power metal', 'female fronted metal', 'metal', 'finnish', 'heavy metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.32 dB'
'TXXX:replaygain_track_peak'                        '0.404177'

========================== row from database ==========================
                                              'id'  1398982
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Sinergy/Suicide By My Side/09 Suicide By My Side.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  223
                                           'genre'  eid-metal-power
                                        'filesize'  5371925
                                           'mtime'  1620310849
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 09 eid metal power
                                      'tag_artist'  Sinergy
                                     'tag_release'  Suicide By My Side
                                       'tag_title'  Suicide By My Side
                                             'bpm'  108.355
                                    'search_title'  'by':2 'my':3 'side':4 'suicide':1
                                   'search_artist'  'sinergy':1
                                  'search_release'  'by':2 'my':3 'side':4 'suicide':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':3 'metal':4 'power':5
                                    'search_combo'  '00dwimp':10 '00metal':11 'by':2A,7C 'eid':12 'metal':13 'my':3A,8C 'power':14 'side':4A,9C 'sinergy':5B 'suicide':1A,6C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['power metal', 'female fronted metal', 'metal', 'finnish', 'heavy metal']
                                        'tag_date'  2001
                                     'discogstags'  ['hardcore', 'gabber', 'electronic']

============================== file details ==============================
                                           'mtime'  1620310849.4127393  (2021-05-06 16:20:49)
                             'size'  5371925