======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '181'
                                          'artist'  'Goldfinger'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Innocent'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['ska', 'punk rock', 'rock', 'punk', 'ska punk']"
                                     'discogstags'  "['trance', 'tech trance', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '125.704'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.704'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'The Innocent'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Goldfinger'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['trance', 'tech trance', 'electronic']
'TXXX:lastfmtags'                                   ['ska', 'punk rock', 'rock', 'punk', 'ska punk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.08 dB'
'TXXX:replaygain_track_peak'                        '0.441160'

========================== row from database ==========================
                                              'id'  1419789
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Goldfinger/Goldfinger__cifsbe85.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  181
                                           'genre'  rock-unsorted
                                        'filesize'  4364901
                                           'mtime'  1621695890
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Goldfinger__cifsbe85 rock unsorted
                                      'tag_artist'  Goldfinger
                                     'tag_release'  None
                                       'tag_title'  The Innocent
                                             'bpm'  125.704
                                    'search_title'  'innocent':2 'the':1
                                   'search_artist'  'goldfinger':1
                                  'search_release'  
                                     'search_rest'  'cifsbe85':3 'classicprogpsy':1 'goldfinger':2 'rock':4 'unsorted':5
                                    'search_combo'  'cifsbe85':6 'classicprogpsy':4 'goldfinger':3B,5 'innocent':2A 'rock':7 'the':1A 'unsorted':8
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['ska', 'punk rock', 'rock', 'punk', 'ska punk']
                                        'tag_date'  2001
                                     'discogstags'  ['trance', 'tech trance', 'electronic']

============================== file details ==============================
                                           'mtime'  1621695889.8630316  (2021-05-22 17:04:49)
                             'size'  4364901