======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '289'
                                          'artist'  'Union Carbide Productions'
                                     'text_people'  ''
                                         'release'  'In Gold We Trust'
                                           'title'  'San Francisco Boogie'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['swedish', 'garage rock', 'punk rock', 'punk', 'kamp', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '105.532'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'In Gold We Trust'
'TBPM' (BPM (beats per minute))                     '105.532'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TIT2' (Title/songname/content description)         'San Francisco Boogie'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Union Carbide Productions'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['swedish', 'garage rock', 'punk rock', 'punk', 'kamp', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.06 dB'
'TXXX:replaygain_track_peak'                        '0.444930'

========================== row from database ==========================
                                              'id'  1289435
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/Union Carbide Productions - San Francisco BoogieRe1.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  289
                                           'genre'  rock-pop
                                        'filesize'  4640172
                                           'mtime'  1620392820
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock BoogieRe1 rock pop
                                      'tag_artist'  Union Carbide Productions
                                     'tag_release'  In Gold We Trust
                                       'tag_title'  San Francisco Boogie
                                             'bpm'  105.532
                                    'search_title'  'boogie':3 'francisco':2 'san':1
                                   'search_artist'  'carbide':2 'productions':3 'union':1
                                  'search_release'  'gold':2 'in':1 'trust':4 'we':3
                                     'search_rest'  '00poprockelectronic':1 'boogie':6 'boogiere1':4 'pop':5 're1':7 'rock':3 'swedish':2
                                    'search_combo'  '00poprockelectronic':11 'boogie':3A,16 'boogiere1':14 'carbide':5B 'francisco':2A 'gold':8C 'in':7C 'pop':15 'productions':6B 're1':17 'rock':13 'san':1A 'swedish':12 'trust':10C 'union':4B 'we':9C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'garage rock', 'punk rock', 'punk', 'kamp', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620392819.9858549  (2021-05-07 15:06:59)
                             'size'  4640172