======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Five Canadians'
                                     'text_people'  ''
                                         'release'  'Tape No007 - Respectable '
                                           'title'  'Writing On The Wall'
                                           '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', 'psychedelic', '60s', '60s garage', 'garage']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '100.7'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tape No007 - Respectable '
'TBPM' (BPM (beats per minute))                     '100.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Writing On The Wall'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Five Canadians'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01'
'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:lastfmtags'                                   ['garage rock', 'psychedelic', '60s', '60s garage', 'garage']
'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'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.369391'
'TXXX:tracknum'                                     '01'

========================== row from database ==========================
                                              'id'  506500
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT007/01 - Five Canadians - Writing On The Wall.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  5499138
                                           'mtime'  1620382747
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT007 01 rock gr garage;set pl garagetapes
                                      'tag_artist'  Five Canadians
                                     'tag_release'  Tape No007 - Respectable 
                                       'tag_title'  Writing On The Wall
                                             'bpm'  100.7
                                    'search_title'  'on':2 'the':3 'wall':4 'writing':1
                                   'search_artist'  'canadians':2 'five':1
                                  'search_release'  'no007':2 'respectable':3 'tape':1
                                     'search_rest'  'blogspot':2 'com':3 'garage':8,10 'garagetapes':1,13 'garagetapesblogspotcom':4 'gr':7 'gt007':5 'pl':12 'rock':6 'set':9,11
                                    'search_combo'  'blogspot':11 'canadians':6B 'com':12 'five':5B 'garage':17,19 'garagetapes':10,22 'garagetapesblogspotcom':13 'gr':16 'gt007':14 'no007':8C 'on':2A 'pl':21 'respectable':9C 'rock':15 'set':18,20 'tape':7C 'the':3A 'wall':4A 'writing':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10B
                                           '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', 'psychedelic', '60s', '60s garage', 'garage']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620382747.1596308  (2021-05-07 12:19:07)
                             'size'  5499138