======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '148'
                                          'artist'  'The Swordsmen'
                                     'text_people'  ''
                                         'release'  "Tape No219 - UC177 - Shakin' All Over (Part IV)"
                                           'title'  "Shakin' All Over"
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['7soul', 'all', 'doo wop']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '129.8'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Tape No219 - UC177 - Shakin' All Over (Part IV)"
'TBPM' (BPM (beats per minute))                     '129.8'
'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)         "Shakin' All Over"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Swordsmen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '04'
'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'                                      'AU'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['7soul', 'all', 'doo wop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+17.85 dB'
'TXXX:replaygain_track_peak'                        '0.065310'
'TXXX:tracknum'                                     '04'

========================== row from database ==========================
                                              'id'  1518102
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT219_UC177/04 - The Swordsmen - Shakin_ All Over (1966 AU).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  148
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3653369
                                           'mtime'  1620385352
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT219_UC177 04 Shakin_ (1966 AU) rock gr garage;set pl garagetapes;set cover covered
                                      'tag_artist'  The Swordsmen
                                     'tag_release'  Tape No219 - UC177 - Shakin' All Over (Part IV)
                                       'tag_title'  Shakin' All Over
                                             'bpm'  129.8
                                    'search_title'  'all':3 'over':4 'shakin':1,2
                                   'search_artist'  'swordsmen':2 'the':1
                                  'search_release'  'all':6 'iv':10,11 'no219':2 'over':7 'part':8,9 'shakin':4,5 'tape':1 'uc177':3
                                     'search_rest'  '1966':8,9 'au':10,11 'blogspot':2 'com':3 'cover':23 'covered':24 'garage':14,16 'garagetapes':1,19,21 'garagetapesblogspotcom':4 'gr':13 'gt219':5 'pl':18 'rock':12 'set':15,17,20,22 'shakin':7 'uc177':6
                                    'search_combo'  '1966':25,26 'all':3A,12C 'au':27,28 'blogspot':19 'com':20 'cover':40 'covered':41 'garage':31,33 'garagetapes':18,36,38 'garagetapesblogspotcom':21 'gr':30 'gt219':22 'iv':16C,17C 'no219':8C 'over':4A,13C 'part':14C,15C 'pl':35 'rock':29 'set':32,34,37,39 'shakin':1A,2A,10C,11C,24 'swordsmen':6B 'tape':7C 'the':5B 'uc177':9C,23
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['7soul', 'all', 'doo wop']
                                        'tag_date'  1966
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620385351.547642  (2021-05-07 13:02:31)
                             'size'  3653369