======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '168'
                                          'artist'  "Grandma's Rockers"
                                     'text_people'  ''
                                         'release'  'Tape No146 - Louie Louie (Part III)'
                                           '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-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'all', '60s', 'psychedelic', 'garage']"
                                     'discogstags'  "['garage rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '94.7'
                                             'key'  '1A'
                                        '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 No146 - Louie Louie (Part III)'
'TBPM' (BPM (beats per minute))                     '94.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Louie Louie'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               "Grandma's Rockers"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '05'
'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'                                      'US'
'TXXX:discogstags'                                  ['garage rock', 'rock']
'TXXX:lastfmtags'                                   ['garage rock', 'all', '60s', 'psychedelic', 'garage']
'TXXX:other'                                        'US'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+25.54 dB'
'TXXX:replaygain_track_peak'                        '0.028036'
'TXXX:tracknum'                                     '05'

========================== row from database ==========================
                                              'id'  1520711
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT146/05 - Grandma_s Rockers (1967 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  168
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  4105991
                                           'mtime'  1620384738
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT146 05 Grandma_s (1967 US) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  Grandma's Rockers
                                     'tag_release'  Tape No146 - Louie Louie (Part III)
                                       'tag_title'  Louie Louie
                                             'bpm'  94.7
                                    'search_title'  'louie':1
                                   'search_artist'  'grandma':1 'grandmas':3 'rockers':4 's':2
                                  'search_release'  'iii':6,7 'louie':3 'no146':2 'part':4,5 'tape':1
                                     'search_rest'  '1967':8,9 'blogspot':2 'com':3 'cover':23 'covered':25 'garage':14,16 'garagetapes':1,19,21 'garagetapesblogspotcom':4 'gr':13 'grandma':6 'gt146':5 'or':24 'pl':18 'rock':12 's':7 'set':15,17,20,22 'us':10,11
                                    'search_combo'  '1967':20,21 'blogspot':14 'com':15 'cover':35 'covered':37 'garage':26,28 'garagetapes':13,31,33 'garagetapesblogspotcom':16 'gr':25 'grandma':2B,18 'grandmas':4B 'gt146':17 'iii':11C,12C 'louie':1A,8C 'no146':7C 'or':36 'part':9C,10C 'pl':30 'rock':24 'rockers':5B 's':3B,19 'set':27,29,32,34 'tape':6C 'us':22,23
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  1A
                                           '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-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'all', '60s', 'psychedelic', 'garage']
                                        'tag_date'  1967
                                     'discogstags'  ['garage rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620384738.2959683  (2021-05-07 12:52:18)
                             'size'  4105991