======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '400'
                                          'artist'  'Loren MazzaCane Connors&Suzanne Langille'
                                     'text_people'  ''
                                         'release'  '1987-1898'
                                           'title'  'Motherless Child'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', '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-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '113.8'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '1987-1898'
'TBPM' (BPM (beats per minute))                     '113.8'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Motherless Child'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Loren MazzaCane Connors&Suzanne Langille'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.48 dB'
'TXXX:replaygain_track_peak'                        '0.730173'

========================== row from database ==========================
                                              'id'  985988
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Epitonic ambient/Loren MazzaCane Connors&Suzanne Langille-Motherless Child.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  400
                                           'genre'  ifs-songwriter
                                        'filesize'  6410112
                                           'mtime'  1637329504
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Epitonic ambient ifs songwriter
                                      'tag_artist'  Loren MazzaCane Connors&Suzanne Langille
                                     'tag_release'  1987-1898
                                       'tag_title'  Motherless Child
                                             'bpm'  113.8
                                    'search_title'  'child':2 'motherless':1
                                   'search_artist'  'cane':8 'connors':3 'connorssuzanne':5 'langille':6 'loren':1 'mazza':7 'mazzacane':2 'suzanne':4
                                  'search_release'  '1898':2 '1987':1 '19871898':3
                                     'search_rest'  'ambient':2 'epitonic':1 'ifs':3 'songwriter':4
                                    'search_combo'  '1898':12C '1987':11C '19871898':13C 'ambient':15 'cane':10B 'child':2A 'connors':5B 'connorssuzanne':7B 'epitonic':14 'ifs':16 'langille':8B 'loren':3B 'mazza':9B 'mazzacane':4B 'motherless':1A 'songwriter':17 'suzanne':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329503.6435516  (2021-11-19 14:45:03)
                             'size'  6410112