======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '203'
                                          'artist'  'Apocalyptica'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Path vol. 2'
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'metal', 'symphonic metal', 'finnish', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '142.008'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '142.008'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Path vol. 2'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Apocalyptica'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'metal', 'symphonic metal', 'finnish', 'heavy metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.95 dB'
'TXXX:replaygain_track_peak'                        '0.357726'

========================== row from database ==========================
                                              'id'  170830
                                            'path'  /data/Music/Bulk/00dwimp/Apocalyptica/cifs8613.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  203
                                           'genre'  eid-unsorted
                                        'filesize'  3255975
                                           'mtime'  1620520966
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp cifs8613 eid unsorted
                                      'tag_artist'  Apocalyptica
                                     'tag_release'  None
                                       'tag_title'  Path vol. 2
                                             'bpm'  142.008
                                    'search_title'  '2':4 'path':1 'vol':2,3
                                   'search_artist'  'apocalyptica':1
                                  'search_release'  
                                     'search_rest'  '00dwimp':1 'cifs8613':2 'eid':3 'unsorted':4
                                    'search_combo'  '00dwimp':6 '2':4A 'apocalyptica':5B 'cifs8613':7 'eid':8 'path':1A 'unsorted':9 'vol':2A,3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['instrumental', 'metal', 'symphonic metal', 'finnish', 'heavy metal']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620520966.0547585  (2021-05-09 02:42:46)
                             'size'  3255975