======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '36'
                                          'artist'  'Mieskuoro Huutajat'
                                     'text_people'  'Petri Sirviö'
                                         'release'  '10th Anniversary Concert'
                                           'title'  'Joulun kellot'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['kicking up cabaret', 'choir', 'suomalainen', 'dada', 'oulu']"
                                     'discogstags'  "['avantgarde']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  '24'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-finland'
                                             'bpm'  '144.233'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000AEB 000006E1 00006516'
'COMM:iTunNORM:eng'                                 (' 00000AEB 000006E1 00006516 00003CB3 000003AC 000003E0 00007C2A 000074E8 '
 '0000035E 000003C6')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000075C 0000000000187794 00000000 00161925 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '3E07D918+150862+24+150+8145+15897+21647+29527+35887+38425+45660+56262+60690+67842+72657+78792+85629+94627+102040+106785+119185+125502+128229+133610+137162+139695+142525'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '19'
'TALB' (Album/Movie/Show title)                     '10th Anniversary Concert'
'TBPM' (BPM (beats per minute))                     '144.233'
'TCOM' (Composer)                                   'Petri Sirviö'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-finland'
'TDRC' (Recording time)                             '1997'
'TENC' (Encoded by)                                 'iTunes 10.4.1'
'TIT2' (Title/songname/content description)         'Joulun kellot'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mieskuoro Huutajat'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '19/24'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'avantgarde'
'TXXX:lastfmtags'                                   ['kicking up cabaret', 'choir', 'suomalainen', 'dada', 'oulu']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.14 dB'
'TXXX:replaygain_track_peak'                        '0.488531'

========================== row from database ==========================
                                              'id'  1398575
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Mieskuoro Huutajat - 10th Anniversary Concert/19. Huutajat - Joulun kellot.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  36
                                           'genre'  loc-eur-northern-finland
                                        'filesize'  1621810
                                           'mtime'  1621629539
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 19. loc eur northern finland
                                      'tag_artist'  Mieskuoro Huutajat
                                     'tag_release'  10th Anniversary Concert
                                       'tag_title'  Joulun kellot
                                             'bpm'  144.233
                                    'search_title'  'joulun':1 'kellot':2
                                   'search_artist'  'huutajat':2 'mieskuoro':1
                                  'search_release'  '10th':1 'anniversary':2 'concert':3
                                     'search_rest'  '00mid':1 '19':4,5 'eur':7 'europe':3 'finland':9 'loc':6 'north':2 'northern':8
                                    'search_combo'  '00mid':8 '10th':5C '19':11,12 'anniversary':6C 'concert':7C 'eur':14 'europe':10 'finland':16 'huutajat':4B 'joulun':1A 'kellot':2A 'loc':13 'mieskuoro':3B 'north':9 'northern':15
                                    'tag_tracknum'  19
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['kicking up cabaret', 'choir', 'suomalainen', 'dada', 'oulu']
                                        'tag_date'  1997
                                     'discogstags'  ['avantgarde']

============================== file details ==============================
                                           'mtime'  1621629539.045848  (2021-05-21 22:38:59)
                             'size'  1621810