======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '150'
                                          'artist'  'Los Hermanos Carrion'
                                     'text_people'  ''
                                         'release'  'Tape No177 - Louie Louie (Part VII)'
                                           'title'  'Louie Louie'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['mexican', 'rock nena linda', 'mexico']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '104.0'
                                             '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 No177 - Louie Louie (Part VII)'
'TBPM' (BPM (beats per minute))                     '104.0'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Louie Louie'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Hermanos Carrion'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '08'
'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:lastfmtags'                                   ['mexican', 'rock nena linda', 'mexico']
'TXXX:other'                                        'MX'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+24.28 dB'
'TXXX:replaygain_track_peak'                        '0.036983'
'TXXX:tracknum'                                     '08'

========================== row from database ==========================
                                              'id'  503054
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT177 - Louie Louie (Part VII)/08 - Los Hermanos Carrion (1966 MX).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  150
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3687900
                                           'mtime'  1620385009
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT177 08 (1966 MX) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  Los Hermanos Carrion
                                     'tag_release'  Tape No177 - Louie Louie (Part VII)
                                       'tag_title'  Louie Louie
                                             'bpm'  104.0
                                    'search_title'  'louie':1
                                   'search_artist'  'carrion':3 'hermanos':2 'los':1
                                  'search_release'  'louie':3 'no177':2 'part':4,5 'tape':1 'vii':6,7
                                     'search_rest'  '1966':6,7 'blogspot':2 'com':3 'cover':21 'covered':23 'garage':12,14 'garagetapes':1,17,19 'garagetapesblogspotcom':4 'gr':11 'gt177':5 'mx':8,9 'or':22 'pl':16 'rock':10 'set':13,15,18,20
                                    'search_combo'  '1966':17,18 'blogspot':13 'carrion':4B 'com':14 'cover':32 'covered':34 'garage':23,25 'garagetapes':12,28,30 'garagetapesblogspotcom':15 'gr':22 'gt177':16 'hermanos':3B 'los':2B 'louie':1A,7C 'mx':19,20 'no177':6C 'or':33 'part':8C,9C 'pl':27 'rock':21 'set':24,26,29,31 'tape':5C 'vii':10C,11C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mexican', 'rock nena linda', 'mexico']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385009.0760198  (2021-05-07 12:56:49)
                             'size'  3687900