======================== unified (from filesystem) ========================
                                         'bitrate'  '205.589'
                                        'duration'  '272'
                                          'artist'  'Talking Heads'
                                     'text_people'  ''
                                         'release'  'The Collection'
                                           'title'  'Love For Sale'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'alternative', 'post punk', 'rock']"
                                     'discogstags'  "['rock', 'pop', 'new wave']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '136.459'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Collection'
'TBPM' (BPM (beats per minute))                     '136.459'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Love For Sale'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Talking Heads'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop', 'new wave']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'alternative', 'post punk', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.398187'

========================== row from database ==========================
                                              'id'  1327309
                                            'path'  /data/Music/Bulk/00poprockelectronic/Talking Heads/06-talking_heads-love_for_sale-whoa.mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  272
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  7007880
                                           'mtime'  1620572166
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 talking_heads love_for_sale whoa electronic we new wave post punk
                                      'tag_artist'  Talking Heads
                                     'tag_release'  The Collection
                                       'tag_title'  Love For Sale
                                             'bpm'  136.459
                                    'search_title'  'for':2 'love':1 'sale':3
                                   'search_artist'  'heads':2 'talking':1
                                  'search_release'  'collection':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':8 'for':5 'heads':3 'love':4 'new':10 'post':12 'punk':13 'sale':6 'talking':2 'wave':11 'we':9 'whoa':7
                                    'search_combo'  '00poprockelectronic':8 'collection':7C 'electronic':15 'for':2A,12 'heads':5B,10 'love':1A,11 'new':17 'post':19 'punk':20 'sale':3A,13 'talking':4B,9 'the':6C 'wave':18 'we':16 'whoa':14
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'alternative', 'post punk', 'rock']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'pop', 'new wave']

============================== file details ==============================
                                           'mtime'  1620572165.9792697  (2021-05-09 16:56:05)
                             'size'  7007880