======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '265'
                                          'artist'  'Loren MazzaCane Connors&Kath Bloom'
                                     'text_people'  ''
                                         'release'  '1981-1984'
                                           'title'  'Swing Low Sweet Chariot'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '106.5'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '1981-1984'
'TBPM' (BPM (beats per minute))                     '106.5'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1982'
'TIT2' (Title/songname/content description)         'Swing Low Sweet Chariot'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Loren MazzaCane Connors&Kath Bloom'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.24 dB'
'TXXX:replaygain_track_peak'                        '0.692408'

========================== row from database ==========================
                                              'id'  986430
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Epitonic ambient/Loren MazzaCane Connors&Kath Bloom-Swing Low Sweet Chariot.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  265
                                           'genre'  ifs-songwriter
                                        'filesize'  4257664
                                           'mtime'  1637329503
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Epitonic ambient ifs songwriter
                                      'tag_artist'  Loren MazzaCane Connors&Kath Bloom
                                     'tag_release'  1981-1984
                                       'tag_title'  Swing Low Sweet Chariot
                                             'bpm'  106.5
                                    'search_title'  'chariot':4 'low':2 'sweet':3 'swing':1
                                   'search_artist'  'bloom':6 'cane':8 'connors':3 'connorskath':5 'kath':4 'loren':1 'mazza':7 'mazzacane':2
                                  'search_release'  '1981':1 '19811984':3 '1984':2
                                     'search_rest'  'ambient':2 'epitonic':1 'ifs':3 'songwriter':4
                                    'search_combo'  '1981':13C '19811984':15C '1984':14C 'ambient':17 'bloom':10B 'cane':12B 'chariot':4A 'connors':7B 'connorskath':9B 'epitonic':16 'ifs':18 'kath':8B 'loren':5B 'low':2A 'mazza':11B 'mazzacane':6B 'songwriter':19 'sweet':3A 'swing':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1982
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329503.0454443  (2021-11-19 14:45:03)
                             'size'  4257664