======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '151'
                                          'artist'  'The Delrays Inc'
                                     'text_people'  ''
                                         'release'  'Tape No253 - Straightaways'
                                           'title'  "Billy's Beat"
                                           '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-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '120.0'
                                             '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 No253 - Straightaways'
'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "Billy's Beat"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Delrays Inc'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '15'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+23.84 dB'
'TXXX:replaygain_track_peak'                        '0.024653'
'TXXX:tracknum'                                     '15'

========================== row from database ==========================
                                              'id'  1517899
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT253/15 - The Delrays Inc - Billy_s Beat (196 US) (Salem).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  151
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3713820
                                           'mtime'  1620385537
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT253 15 Billy_s (196 US) (Salem) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Delrays Inc
                                     'tag_release'  Tape No253 - Straightaways
                                       'tag_title'  Billy's Beat
                                             'bpm'  120.0
                                    'search_title'  'beat':4 'billy':1 'billys':3 's':2
                                   'search_artist'  'delrays':2 'inc':3 'the':1
                                  'search_release'  'no253':2 'straightaways':3 'tape':1
                                     'search_rest'  '196':8,9 'billy':6 'blogspot':2 'com':3 'garage':16,18 'garagetapes':1,21 'garagetapesblogspotcom':4 'gr':15 'gt253':5 'pl':20 'rock':14 's':7 'salem':12,13 'set':17,19 'us':10,11
                                    'search_combo'  '196':18,19 'beat':4A 'billy':1A,16 'billys':3A 'blogspot':12 'com':13 'delrays':6B 'garage':26,28 'garagetapes':11,31 'garagetapesblogspotcom':14 'gr':25 'gt253':15 'inc':7B 'no253':9C 'pl':30 'rock':24 's':2A,17 'salem':22,23 'set':27,29 'straightaways':10C 'tape':8C 'the':5B 'us':20,21
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385536.7549403  (2021-05-07 13:05:36)
                             'size'  3713820