======================== unified (from filesystem) ========================
                                         'bitrate'  '105.408'
                                        'duration'  '233'
                                          'artist'  'Sandalwood'
                                     'text_people'  ''
                                         'release'  'Dimitri 60s 70s'
                                           'title'  'Sleepy Rain'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'Q-MIXBEAT-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'ifs-folk'
                                             'bpm'  '144.4'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri 60s 70s'
'TBPM' (BPM (beats per minute))                     '144.4'
'TCON' (Content type, a.k.a. Genre)                 'ifs-folk'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Sleepy Rain'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sandalwood'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:compatible_brands'                            'isomiso2mp41'
'TXXX:major_brand'                                  'isom'
'TXXX:minor_version'                                '512'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.54 dB'
'TXXX:replaygain_track_peak'                        '0.430815'
'TXXX:youtube'                                      'no1wddwsFtE'

========================== row from database ==========================
                                              'id'  1477574
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/60s70s/Sandalwood [UK] - a_1. Sleepy Rain.-no1wddwsFtE.mp3
                                         'working'  None
                                         'bitrate'  105
                                    'duration_sec'  233
                                           'genre'  ifs-folk
                                        'filesize'  3075664
                                           'mtime'  1637330725
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 60s70s [UK] a_1. Rain. no1wddwsFtE ifs folk
                                      'tag_artist'  Sandalwood
                                     'tag_release'  Dimitri 60s 70s
                                       'tag_title'  Sleepy Rain
                                             'bpm'  144.4
                                    'search_title'  'rain':2 'sleepy':1
                                   'search_artist'  'sandalwood':1
                                  'search_release'  '60s':2 '70s':3 'dimitri':1
                                     'search_rest'  '1':5,7 '60s70s':1 'a':4,6 'e':15 'folk':12 'ft':14 'ifs':11 'no1wddws':13 'no1wddwsfte':10 'rain':8,9 'uk':2,3
                                    'search_combo'  '1':11,13 '60s':5C '60s70s':7 '70s':6C 'a':10,12 'dimitri':4C 'e':21 'folk':18 'ft':20 'ifs':17 'no1wddws':19 'no1wddwsfte':16 'rain':2A,14,15 'sandalwood':3B 'sleepy':1A 'uk':8,9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330724.9713717  (2021-11-19 15:05:24)
                             'size'  3075664