======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '120'
                                          'artist'  'D.Å.R.F.D.H.S.'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Leaving Mälaren, Across Austmarr'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['techno', 'ambient techno', 'experimental', 'drone', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '113.5'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '113.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Leaving Mälaren, Across Austmarr'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'D.Å.R.F.D.H.S.'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['techno', 'ambient techno', 'experimental', 'drone', 'ambient']
'TXXX:other'                                        '195178416'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.78 dB'
'TXXX:replaygain_track_peak'                        '0.472159'

========================== row from database ==========================
                                              'id'  940604
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/fieldrecords/D.Å.R.F.D.H.S. - Leaving Mälaren, Across Austmarr-195178416.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  120
                                           'genre'  electronic
                                        'filesize'  1923166
                                           'mtime'  1636912888
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud fieldrecords 195178416 electronic
                                      'tag_artist'  D.Å.R.F.D.H.S.
                                     'tag_release'  None
                                       'tag_title'  Leaving Mälaren, Across Austmarr
                                             'bpm'  113.5
                                    'search_title'  'across':6 'austmarr':7 'leaving':1 'malaren':2,3,4,5
                                   'search_artist'  'a':2,10 'd':1,5,9,13 'darfdhs':8,16 'f':4,12 'h':6,14 'r':3,11 's':7,15
                                  'search_release'  
                                     'search_rest'  '195178416':3 'electronic':4 'fieldrecords':2 'soundcloud':1
                                    'search_combo'  '195178416':26 'a':9B,17B 'across':6A 'austmarr':7A 'd':8B,12B,16B,20B 'darfdhs':15B,23B 'electronic':27 'f':11B,19B 'fieldrecords':25 'h':13B,21B 'leaving':1A 'malaren':2A,3A,4A,5A 'r':10B,18B 's':14B,22B 'soundcloud':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['techno', 'ambient techno', 'experimental', 'drone', 'ambient']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912887.7054734  (2021-11-14 19:01:27)
                             'size'  1923166