======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '238'
                                          'artist'  'Joni Mitchell'
                                     'text_people'  ''
                                         'release'  'Night Ride Home'
                                           'title'  'Two Grey Rooms'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'soft rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-eos'
                                             'bpm'  '136.828'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Night Ride Home'
'TBPM' (BPM (beats per minute))                     '136.828'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Two Grey Rooms'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Joni Mitchell'
'TRCK' (Track number/Position in set)               '10'
'TXXX:ITunes_CDDB_IDs'                              '10+68431BC3115B63B2C46EE093BECB4906+438956'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tempo'                                        '00000 BPM'
'TXXX:Tool'                                         'iTunes v4.7.1.30, QuickTime 6.5.2'
'TXXX:Totaltracks'                                  '10'
'TXXX:Writer'                                       'Joni Mitchell'
'TXXX:discogstags'                                  ['rock', 'soft rock']
'TXXX:lastfmtags'                                   ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.774556'

========================== row from database ==========================
                                              'id'  185081
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Joni Mitchell/1991 - Night Ride Home/10 two grey rooms.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  238
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-eos
                                        'filesize'  5734400
                                           'mtime'  1636400350
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1991 10 two grey rooms ifs songwriter folk;ifs songwriter eos
                                      'tag_artist'  Joni Mitchell
                                     'tag_release'  Night Ride Home
                                       'tag_title'  Two Grey Rooms
                                             'bpm'  136.828
                                    'search_title'  'grey':2 'rooms':3 'two':1
                                   'search_artist'  'joni':1 'mitchell':2
                                  'search_release'  'home':3 'night':1 'ride':2
                                     'search_rest'  '00singer':1 '1991':4 'eos':3 'folk':9,11 'grey':6 'ifs':8,10,12 'rooms':7 'songwriter':2 'two':5
                                    'search_combo'  '00singer':9 '1991':12 'eos':11 'folk':17,19 'grey':2A,14 'home':8C 'ifs':16,18,20 'joni':4B 'mitchell':5B 'night':6C 'ride':7C 'rooms':3A,15 'songwriter':10 'two':1A,13
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1991
                                     'discogstags'  ['rock', 'soft rock']

============================== file details ==============================
                                           'mtime'  1636400350.2859712  (2021-11-08 20:39:10)
                             'size'  5734400