======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '175'
                                          'artist'  'Al Stewart'
                                     'text_people'  ''
                                         'release'  'Tape No154 - Covering The Yardbirds (Part III)'
                                           'title'  'Turn Into Earth'
                                           '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-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['70s', 'soft rock', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '132.5'
                                             'key'  '2B'
                                        '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 No154 - Covering The Yardbirds (Part III)'
'TBPM' (BPM (beats per minute))                     '132.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Turn Into Earth'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Stewart'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '18'
'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'                                      'UK'
'TXXX:lastfmtags'                                   ['70s', 'soft rock', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+23.58 dB'
'TXXX:replaygain_track_peak'                        '0.034636'
'TXXX:tracknum'                                     '18'

========================== row from database ==========================
                                              'id'  506909
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT154/18 - Al Stewart - Turn Into Earth (1966 UK).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  175
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4436828
                                           'mtime'  1620384824
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT154 18 (1966 UK) rock gr garage;set pl garagetapes
                                      'tag_artist'  Al Stewart
                                     'tag_release'  Tape No154 - Covering The Yardbirds (Part III)
                                       'tag_title'  Turn Into Earth
                                             'bpm'  132.5
                                    'search_title'  'earth':3 'into':2 'turn':1
                                   'search_artist'  'al':1 'stewart':2
                                  'search_release'  'covering':3 'iii':8,9 'no154':2 'part':6,7 'tape':1 'the':4 'yardbirds':5
                                     'search_rest'  '18':6 '1966':7,8 'blogspot':2 'com':3 'garage':13,15 'garagetapes':1,18 'garagetapesblogspotcom':4 'gr':12 'gt154':5 'pl':17 'rock':11 'set':14,16 'uk':9,10
                                    'search_combo'  '18':20 '1966':21,22 'al':4B 'blogspot':16 'com':17 'covering':8C 'earth':3A 'garage':27,29 'garagetapes':15,32 'garagetapesblogspotcom':18 'gr':26 'gt154':19 'iii':13C,14C 'into':2A 'no154':7C 'part':11C,12C 'pl':31 'rock':25 'set':28,30 'stewart':5B 'tape':6C 'the':9C 'turn':1A 'uk':23,24 'yardbirds':10C
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  2B
                                           '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-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['70s', 'soft rock', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384823.7579584  (2021-05-07 12:53:43)
                             'size'  4436828