======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '259'
                                          'artist'  'The Midnight Sun'
                                     'text_people'  ''
                                         'release'  'Tape No149 - Real Girls In The Garage Land (Part XLI)'
                                           'title'  "You Keep Me Hangin' On"
                                           '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-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '91.1'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tape No149 - Real Girls In The Garage Land (Part XLI)'
'TBPM' (BPM (beats per minute))                     '91.1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         "You Keep Me Hangin' On"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Midnight Sun'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'http://garagetapes.blogspot.gr/'
'TRCK' (Track number/Position in set)               '12'
'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'                                  'soul'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+24.02 dB'
'TXXX:replaygain_track_peak'                        '0.025408'
'TXXX:tracknum'                                     '12'

========================== row from database ==========================
                                              'id'  1503747
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT149/12 - The Midnight Sun - You Keep Me Hangin_ On (1968 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  259
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  6282870
                                           'mtime'  1620384769
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT149 12 Hangin_ (1968 US) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Midnight Sun
                                     'tag_release'  Tape No149 - Real Girls In The Garage Land (Part XLI)
                                       'tag_title'  You Keep Me Hangin' On
                                             'bpm'  91.1
                                    'search_title'  'hangin':4,5 'keep':2 'me':3 'on':6 'you':1
                                   'search_artist'  'midnight':2 'sun':3 'the':1
                                  'search_release'  'garage':7 'girls':4 'in':5 'land':8 'no149':2 'part':9,10 'real':3 'tape':1 'the':6 'xli':11,12
                                     'search_rest'  '1968':7,8 'blogspot':2 'com':3 'garage':13,15 'garagetapes':1,18 'garagetapesblogspotcom':4 'gr':12 'gt149':5 'hangin':6 'pl':17 'rock':11 'set':14,16 'us':9,10
                                    'search_combo'  '1968':28,29 'blogspot':23 'com':24 'garage':16C,34,36 'garagetapes':22,39 'garagetapesblogspotcom':25 'girls':13C 'gr':33 'gt149':26 'hangin':4A,5A,27 'in':14C 'keep':2A 'land':17C 'me':3A 'midnight':8B 'no149':11C 'on':6A 'part':18C,19C 'pl':38 'real':12C 'rock':32 'set':35,37 'sun':9B 'tape':10C 'the':7B,15C 'us':30,31 'xli':20C,21C 'you':1A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  9A
                                           '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-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1968
                                     'discogstags'  ['soul']

============================== file details ==============================
                                           'mtime'  1620384769.3848455  (2021-05-07 12:52:49)
                             'size'  6282870