======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '89'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Yggdrasil'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'A1'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '128.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Yggdrasil'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               'A1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:other'                                        '174045202'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-5.73 dB'
'TXXX:replaygain_track_peak'                        '0.729861'
'TXXX:trocknumber'                                  'A1'

========================== row from database ==========================
                                              'id'  857361
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/unsorted/A1.Yggdrasil-174045202.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  89
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  1434474
                                           'mtime'  1621085017
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud unsorted A1.Yggdrasil 174045202 electronic th techno minimal or deephouse
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  Yggdrasil
                                             'bpm'  128.0
                                    'search_title'  'yggdrasil':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  '174045202':6 'a1':3 'a1yggdrasil':5 'deephouse':12 'electronic':7 'minimal':10 'or':11 'soundcloud':1 'techno':9 'th':8 'unsorted':2 'yggdrasil':4
                                    'search_combo'  '174045202':9 'a1':6 'a1yggdrasil':8 'deephouse':15 'electronic':10 'minimal':13 'or':14 'soundcloud':4 'techno':12 'th':11 'unknown':2B,3B 'unsorted':5 'yggdrasil':1A,7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621085017.2510061  (2021-05-15 15:23:37)
                             'size'  1434474