======================== unified (from filesystem) ========================
                                         'bitrate'  '239.054'
                                        'duration'  '108'
                                          'artist'  'Cars Can Be Blue'
                                     'text_people'  'Cars Can Be Blue'
                                         'release'  'All The Stuff We Do'
                                           'title'  'Perm Guy'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'indie pop', 'lo fi', 'female vocalists', 'twee']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '20'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-antifolk'
                                             'bpm'  '110.7'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'All The Stuff We Do'
'TBPM' (BPM (beats per minute))                     '110.7'
'TCOM' (Composer)                                   'Cars Can Be Blue'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-antifolk'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Perm Guy'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cars Can Be Blue'
'TRCK' (Track number/Position in set)               '3/20'
'TXXX:Q-HAP'                                        '3'
'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', 'indie pop', 'lo fi', 'female vocalists', 'twee']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '+0.04 dB'
'TXXX:replaygain_track_peak'                        '0.326634'

========================== row from database ==========================
                                              'id'  1365809
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Cars Can Be Blue - All The Stuff We Do/03 Perm Guy.mp3
                                         'working'  None
                                         'bitrate'  239
                                    'duration_sec'  108
                                           'genre'  ifs-songwriter-antifolk
                                        'filesize'  3239813
                                           'mtime'  1623430139
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 03 ifs songwriter antifolk
                                      'tag_artist'  Cars Can Be Blue
                                     'tag_release'  All The Stuff We Do
                                       'tag_title'  Perm Guy
                                             'bpm'  110.7
                                    'search_title'  'guy':2 'perm':1
                                   'search_artist'  'be':3 'blue':4 'can':2 'cars':1
                                  'search_release'  'all':1 'do':5 'stuff':3 'the':2 'we':4
                                     'search_rest'  '00singer':1 'antifolk':5 'eos':3 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':12 'all':7C 'antifolk':16 'be':5B 'blue':6B 'can':4B 'cars':3B 'do':11C 'eos':14 'guy':2A 'ifs':15 'perm':1A 'songwriter':13 'stuff':9C 'the':8C 'we':10C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'lo fi', 'female vocalists', 'twee']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1623430138.9840612  (2021-06-11 18:48:58)
                             'size'  3239813