======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '197'
                                          'artist'  'Clockwork Radio'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Zeppy'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', "
 "'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['indie rock', 'manchester', 'all', 'awesomeness', 'free download']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '139.948'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '139.948'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Zeppy'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Clockwork Radio'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie rock', 'manchester', 'all', 'awesomeness', 'free download']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.85 dB'
'TXXX:replaygain_track_peak'                        '0.701487'

========================== row from database ==========================
                                              'id'  1456626
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/00mixable/Unsorted/Clockwork-Radio-Zeppy.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  197
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  7891113
                                           'mtime'  1620558236
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 00mixable Unsorted electronic generic radio dance
                                      'tag_artist'  Clockwork Radio
                                     'tag_release'  None
                                       'tag_title'  Zeppy
                                             'bpm'  139.948
                                    'search_title'  'zeppy':1
                                   'search_artist'  'clockwork':1 'radio':2
                                  'search_release'  
                                     'search_rest'  '00mixable':5 '00poprockelectronic':1 'dance':3 'electronic':7 'generic':2 'radio':8 'trapbeat':4 'unsorted':6
                                    'search_combo'  '00mixable':8 '00poprockelectronic':4 'clockwork':2B 'dance':6 'electronic':10 'generic':5 'radio':3B,11 'trapbeat':7 'unsorted':9 'zeppy':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie rock', 'manchester', 'all', 'awesomeness', 'free download']
                                        'tag_date'  2010
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620558236.3735006  (2021-05-09 13:03:56)
                             'size'  7891113