======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '164'
                                          'artist'  'Los Belmonts'
                                     'text_people'  ''
                                         'release'  'Tape No154 - Covering The Yardbirds (Part III)'
                                           'title'  'La Forma De Las Cosas'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'latin', '60s', 'spanish', 'mexico']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '131.8'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.gr/'
'TALB' (Album/Movie/Show title)                     'Tape No154 - Covering The Yardbirds (Part III)'
'TBPM' (BPM (beats per minute))                     '131.8'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'La Forma De Las Cosas'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Belmonts'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'MX'
'TXXX:lastfmtags'                                   ['rock and roll', 'latin', '60s', 'spanish', 'mexico']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+24.32 dB'
'TXXX:replaygain_track_peak'                        '0.030807'
'TXXX:tracknum'                                     '16'

========================== row from database ==========================
                                              'id'  499080
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT154/16 - Los Belmonts - La Forma De Las Cosas (1967 MX).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  164
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4172881
                                           'mtime'  1620384822
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT154 16 (1967 MX) rock gr garage;set pl garagetapes
                                      'tag_artist'  Los Belmonts
                                     'tag_release'  Tape No154 - Covering The Yardbirds (Part III)
                                       'tag_title'  La Forma De Las Cosas
                                             'bpm'  131.8
                                    'search_title'  'cosas':5 'de':3 'forma':2 'la':1 'las':4
                                   'search_artist'  'belmonts':2 'los':1
                                  'search_release'  'covering':3 'iii':8,9 'no154':2 'part':6,7 'tape':1 'the':4 'yardbirds':5
                                     'search_rest'  '1967':6,7 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt154':5 'mx':8,9 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1967':22,23 'belmonts':7B 'blogspot':18 'com':19 'cosas':5A 'covering':10C 'de':3A 'forma':2A 'garage':28,30 'garagetapes':17,33 'garagetapesblogspotcom':20 'gr':27 'gt154':21 'iii':15C,16C 'la':1A 'las':4A 'los':6B 'mx':24,25 'no154':9C 'part':13C,14C 'pl':32 'rock':26 'set':29,31 'tape':8C 'the':11C 'yardbirds':12C
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'latin', '60s', 'spanish', 'mexico']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384822.422809  (2021-05-07 12:53:42)
                             'size'  4172881