======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '159'
                                          'artist'  'Group One'
                                     'text_people'  ''
                                         'release'  'Tape No147 - Louie Louie (Part IV)'
                                           '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']")
                                     'discogstags'  "['doo wop', 'pop', 'vocal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '113.6'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tape No147 - Louie Louie (Part IV)'
'TBPM' (BPM (beats per minute))                     '113.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Louie Louie'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Group One'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'http://garagetapes.blogspot.gr/'
'TRCK' (Track number/Position in set)               '17'
'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'                                  ['doo wop', 'pop', 'vocal', 'rock']
'TXXX:other'                                        'US'
'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'                        '+24.91 dB'
'TXXX:replaygain_track_peak'                        '0.020819'
'TXXX:tracknum'                                     '17'

========================== row from database ==========================
                                              'id'  502908
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT147/17 - Group One (196 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  159
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3904011
                                           'mtime'  1620384757
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT147 17 (196 US) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  Group One
                                     'tag_release'  Tape No147 - Louie Louie (Part IV)
                                       'tag_title'  Louie Louie
                                             'bpm'  113.6
                                    'search_title'  'louie':1
                                   'search_artist'  'group':1 'one':2
                                  'search_release'  'iv':6,7 'louie':3 'no147':2 'part':4,5 'tape':1
                                     'search_rest'  '196':6,7 'blogspot':2 'com':3 'cover':21 'covered':23 'garage':12,14 'garagetapes':1,17,19 'garagetapesblogspotcom':4 'gr':11 'gt147':5 'or':22 'pl':16 'rock':10 'set':13,15,18,20 'us':8,9
                                    'search_combo'  '196':16,17 'blogspot':12 'com':13 'cover':31 'covered':33 'garage':22,24 'garagetapes':11,27,29 'garagetapesblogspotcom':14 'gr':21 'group':2B 'gt147':15 'iv':9C,10C 'louie':1A,6C 'no147':5C 'one':3B 'or':32 'part':7C,8C 'pl':26 'rock':20 'set':23,25,28,30 'tape':4C 'us':18,19
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  9B
                                           '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'  []
                                        'tag_date'  1965
                                     'discogstags'  ['doo wop', 'pop', 'vocal', 'rock']

============================== file details ==============================
                                           'mtime'  1620384756.8247864  (2021-05-07 12:52:36)
                             'size'  3904011