======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '336'
                                          'artist'  'Frank Ferrer'
                                     'text_people'  ''
                                         'release'  'Mirror to the Soul: Caribbean Jump-Up, Mambo and Calypso Beat 1954-77'
                                           'title'  "Pa' Los Obreros"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['salsa', 'latin', 'puerto rico']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  '25'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'loc-islands-carribean'
                                             'bpm'  '131.413'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 ('0000092D 000008A5 00004DA2 00003CCE 0003D82F 00010400 00007B1E 00007B1A '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 ('00000000 00000210 00000708 0000000000E282E8 00000000 00CD5B6E 00000000 '
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'COMM:iTunes_CDDB_1:eng'                            '6D129B19+357399+25+150+9234+22834+35644+52456+65302+79477+93165+106463+119223+133464+147027+162818+178030+195714+208263+217738+230234+246283+271529+288939+300363+321103+333049+347496'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '19'
'TALB' (Album/Movie/Show title)                     'Mirror to the Soul: Caribbean Jump-Up, Mambo and Calypso Beat 1954-77'
'TBPM' (BPM (beats per minute))                     '131.413'
'TCON' (Content type, a.k.a. Genre)                 'loc-islands-carribean'
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         "Pa' Los Obreros"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Ferrer'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '19/25'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['salsa', 'latin', 'puerto rico']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.485907'
'USLT::eng'                                         'www.musicbay.org'

========================== row from database ==========================
                                              'id'  1511213
                                            'path'  /data/Music/Bulk/00localcharacter/00islands/[CARIBBEAN] MIRROR TO THE SOUL - CARIBBEAN JUMP UP MAMBO & SOCA BEA 1954-1977 [SOUL JAZZ] (2013)/19 Pa_ Los Obreros.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  336
                                           'genre'  loc-islands-carribean
                                        'filesize'  13481810
                                           'mtime'  1620534933
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00islands [CARIBBEAN] MIRROR TO THE SOUL CARIBBEAN JUMP UP MAMBO & SOCA BEA 1977 [SOUL JAZZ] (2013) Pa_ loc islands carribean
                                      'tag_artist'  Frank Ferrer
                                     'tag_release'  Mirror to the Soul: Caribbean Jump-Up, Mambo and Calypso Beat 1954-77
                                       'tag_title'  Pa' Los Obreros
                                             'bpm'  131.413
                                    'search_title'  'los':3 'obreros':4 'pa':1,2
                                   'search_artist'  'ferrer':2 'frank':1
                                  'search_release'  '1954':14 '195477':16 '77':15 'and':11 'beat':13 'calypso':12 'caribbean':6 'jump':7 'jumpup':9 'mambo':10 'mirror':1 'soul':4,5 'the':3 'to':2 'up':8
                                     'search_rest'  '00islands':1 '1977':13 '2013':17,18 'bea':12 'caribbean':2,3 'carribean':22 'islands':21 'jazz':15,16 'jump':8 'loc':20 'mambo':10 'mirror':4 'pa':19 'soca':11 'soul':7,14 'the':6 'to':5 'up':9
                                    'search_combo'  '00islands':23 '1954':20C '195477':22C '1977':35 '2013':39,40 '77':21C 'and':17C 'bea':34 'beat':19C 'calypso':18C 'caribbean':12C,24,25 'carribean':44 'ferrer':6B 'frank':5B 'islands':43 'jazz':37,38 'jump':13C,30 'jumpup':15C 'loc':42 'los':3A 'mambo':16C,32 'mirror':7C,26 'obreros':4A 'pa':1A,2A,41 'soca':33 'soul':10C,11C,29,36 'the':9C,28 'to':8C,27 'up':14C,31
                                    'tag_tracknum'  19
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['salsa', 'latin', 'puerto rico']
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620534933.100579  (2021-05-09 06:35:33)
                             'size'  13481810