======================== unified (from filesystem) ========================
                                         'bitrate'  '207.67'
                                        'duration'  '244'
                                          'artist'  'Slonovski Bal'
                                     'text_people'  ''
                                         'release'  'Balkanbeats, Volume 3'
                                           'title'  'Moscow Fever'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['balkan', 'gypsy', 'folk', 'balkan brass', 'world']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '15'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '125.006'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Wedding'
'COMM:Songs-DB_Custom2:eng'                         'Horns; Brass; Orchestra; Virtuoso'
'COMM:Songs-DB_Custom3:eng'                         'European'
'COMM:Songs-DB_Occasion:eng'                        'Wedding'
'POPM:'                                             POPM(email='', rating=204, count=0)
'TALB' (Album/Movie/Show title)                     'Balkanbeats, Volume 3'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008-05-02'
'TENC' (Encoded by)                                 'LAME'
'TIT2' (Title/songname/content description)         'Moscow Fever'
'TKEY' (Initial key)                                '4A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Slonovski Bal'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '10/15'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Slonovski Bal'
'TXXX:ASIN'                                         'B0017IYW0S'
'TXXX:FMPS_Rating'                                  '0.8'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '0554b6f1-e864-423c-87fb-4e52a8b3b0e2'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'c4a0e6d9-777f-49da-910b-f1afc7a05604'
'TXXX:MusicIP PUID'                                 '58c3db41-00c8-1e6e-6891-be023d00129b'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['balkan', 'gypsy', 'folk', 'balkan brass', 'world']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.383307'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5e640a7e-834b-4acf-befe-90fdbff5f08c')

========================== row from database ==========================
                                              'id'  925354
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/Balkan Beats/BalkanBeats Vol.3 (2008)/10. Slonovski Bal Moscow Fever.mp3
                                         'working'  None
                                         'bitrate'  207
                                    'duration_sec'  244
                                           'genre'  loc-m
                                        'filesize'  6356591
                                           'mtime'  1620526522
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east Beats BalkanBeats Vol.3 (2008) 10. loc
                                      'tag_artist'  Slonovski Bal
                                     'tag_release'  Balkanbeats, Volume 3
                                       'tag_title'  Moscow Fever
                                             'bpm'  125.006
                                    'search_title'  'fever':2 'moscow':1
                                   'search_artist'  'bal':2 'slonovski':1
                                  'search_release'  '3':4 'balkanbeats':1,2 'volume':3
                                     'search_rest'  '00south':1 '10':12,13 '2008':10,11 '3':8 'balkan':15 'balkanbeats':6 'beats':5 'east':4 'europe':2 'loc':14 'middle':3 'vol':7 'vol3':9
                                    'search_combo'  '00south':9 '10':20,21 '2008':18,19 '3':8C,16 'bal':4B 'balkan':23 'balkanbeats':5C,6C,14 'beats':13 'east':12 'europe':10 'fever':2A 'loc':22 'middle':11 'moscow':1A 'slonovski':3B 'vol':15 'vol3':17 'volume':7C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['balkan', 'gypsy', 'folk', 'balkan brass', 'world']
                                        'tag_date'  2008
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1620526522.4399145  (2021-05-09 04:15:22)
                             'size'  6356591