======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '138'
                                          'artist'  'The Great Scots'
                                     'text_people'  ''
                                         'release'  'Tape No029 - The Animal in Me'
                                           'title'  'Ball And Chain'
                                           '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'rock', 'garage', 'folk punk', '1966']"
                                     'discogstags'  "['garage rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '131.2'
                                             '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 No029 - The Animal in Me'
'TBPM' (BPM (beats per minute))                     '131.2'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Ball And Chain'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Great Scots'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '08'
'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:discogstags'                                  ['garage rock', 'rock']
'TXXX:lastfmtags'                                   ['garage rock', 'rock', 'garage', 'folk punk', '1966']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+24.34 dB'
'TXXX:replaygain_track_peak'                        '0.023916'
'TXXX:tracknum'                                     '08'

========================== row from database ==========================
                                              'id'  506027
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT029 - The Animal in Me/08 - The Great Scots - Ball And Chain (1966).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  138
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3384909
                                           'mtime'  1620382956
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT029 08 (1966) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Great Scots
                                     'tag_release'  Tape No029 - The Animal in Me
                                       'tag_title'  Ball And Chain
                                             'bpm'  131.2
                                    'search_title'  'and':2 'ball':1 'chain':3
                                   'search_artist'  'great':2 'scots':3 'the':1
                                  'search_release'  'animal':4 'in':5 'me':6 'no029':2 'tape':1 'the':3
                                     'search_rest'  '1966':6,7 'blogspot':2 'com':3 'garage':10,12 'garagetapes':1,15 'garagetapesblogspotcom':4 'gr':9 'gt029':5 'pl':14 'rock':8 'set':11,13
                                    'search_combo'  '1966':18,19 'and':2A 'animal':10C 'ball':1A 'blogspot':14 'chain':3A 'com':15 'garage':22,24 'garagetapes':13,27 'garagetapesblogspotcom':16 'gr':21 'great':5B 'gt029':17 'in':11C 'me':12C 'no029':8C 'pl':26 'rock':20 'scots':6B 'set':23,25 'tape':7C 'the':4B,9C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  1A
                                           '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-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'rock', 'garage', 'folk punk', '1966']
                                        'tag_date'  1966
                                     'discogstags'  ['garage rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620382956.284307  (2021-05-07 12:22:36)
                             'size'  3384909