======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '117'
                                          'artist'  'Clem Snide'
                                     'text_people'  ''
                                         'release'  'The Ghost of Fashion'
                                           'title'  'The Ballad of Unzer Charlie'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['indie rock', 'americana', 'indie', 'rock', 'alternative', 'alt country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '93.3'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Ghost of Fashion'
'TBPM' (BPM (beats per minute))                     '93.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TFLT' (File type)                                  '/3'
'TIT2' (Title/songname/content description)         'The Ballad of Unzer Charlie'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 '(CD/DD)'
'TPE1' (Lead performer(s)/Soloist(s))               'Clem Snide'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie rock', 'americana', 'indie', 'rock', 'alternative', 'alt country']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.788807'

========================== row from database ==========================
                                              'id'  1483172
                                            'path'  /data/Music/Bulk/00poprockelectronic/2001 - the ghost of fashion/12. the ballad of unzer charlie.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  117
                                           'genre'  prerock-country
                                        'filesize'  2813315
                                           'mtime'  1621630092
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2001 the ghost fashion 12. the ballad unzer charlie prerock country
                                      'tag_artist'  Clem Snide
                                     'tag_release'  The Ghost of Fashion
                                       'tag_title'  The Ballad of Unzer Charlie
                                             'bpm'  93.3
                                    'search_title'  'ballad':2 'charlie':5 'of':3 'the':1 'unzer':4
                                   'search_artist'  'clem':1 'snide':2
                                  'search_release'  'fashion':4 'ghost':2 'of':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 '12':6,7 '2001':2 'ballad':8 'charlie':10 'country':12 'fashion':5 'ghost':4 'prerock':11 'the':3 'unzer':9
                                    'search_combo'  '00poprockelectronic':12 '12':17,18 '2001':13 'ballad':2A,19 'charlie':5A,21 'clem':6B 'country':23 'fashion':11C,16 'ghost':9C,15 'of':3A,10C 'prerock':22 'snide':7B 'the':1A,8C,14 'unzer':4A,20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-3', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['indie rock', 'americana', 'indie', 'rock', 'alternative', 'alt country']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630092.2074661  (2021-05-21 22:48:12)
                             'size'  2813315