======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '190'
                                          'artist'  'The Second Half'
                                     'text_people'  ''
                                         'release'  'Tape No186 - Welcome Back Among The Living'
                                           'title'  'Knight In Armour'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage', 'iowa']"
                                     'discogstags'  "['folk rock', 'garage rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '139.6'
                                             'key'  '5A'
                                        '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 No186 - Welcome Back Among The Living'
'TBPM' (BPM (beats per minute))                     '139.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Knight In Armour'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Second Half'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'US'
'TXXX:discogstags'                                  ['folk rock', 'garage rock', 'rock']
'TXXX:lastfmtags'                                   ['garage', 'iowa']
'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-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+24.53 dB'
'TXXX:replaygain_track_peak'                        '0.017964'
'TXXX:tracknum'                                     '14'

========================== row from database ==========================
                                              'id'  504860
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT186/14 - The Second Half - Knight In Armour (1967 US) (IGL).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  190
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4763274
                                           'mtime'  1620385092
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT186 14 (1967 US) (IGL) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Second Half
                                     'tag_release'  Tape No186 - Welcome Back Among The Living
                                       'tag_title'  Knight In Armour
                                             'bpm'  139.6
                                    'search_title'  'armour':3 'in':2 'knight':1
                                   'search_artist'  'half':3 'second':2 'the':1
                                  'search_release'  'among':5 'back':4 'living':7 'no186':2 'tape':1 'the':6 'welcome':3
                                     'search_rest'  '1967':6,7 'blogspot':2 'com':3 'garage':14,16 'garagetapes':1,19 'garagetapesblogspotcom':4 'gr':13 'gt186':5 'igl':10,11 'pl':18 'rock':12 'set':15,17 'us':8,9
                                    'search_combo'  '1967':19,20 'among':11C 'armour':3A 'back':10C 'blogspot':15 'com':16 'garage':27,29 'garagetapes':14,32 'garagetapesblogspotcom':17 'gr':26 'gt186':18 'half':6B 'igl':23,24 'in':2A 'knight':1A 'living':13C 'no186':8C 'pl':31 'rock':25 'second':5B 'set':28,30 'tape':7C 'the':4B,12C 'us':21,22 'welcome':9C
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', '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-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['garage', 'iowa']
                                        'tag_date'  1967
                                     'discogstags'  ['folk rock', 'garage rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620385092.0691063  (2021-05-07 12:58:12)
                             'size'  4763274