======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '409'
                                          'artist'  'Harold Flake'
                                     'text_people'  ''
                                         'release'  'Single'
                                           'title'  'Tour Of The Athabasca Glaciar'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '144.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
'TALB' (Album/Movie/Show title)                     'Single'
'TBPM' (BPM (beats per minute))                     '144.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Tour Of The Athabasca Glaciar'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Harold Flake'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.927847'

========================== row from database ==========================
                                              'id'  660325
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/10/274_2_Harold_Flake_-_Tour_Of_The_Athabasca_Glaciar.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  409
                                           'genre'  electronic-unsorted
                                        'filesize'  11863539
                                           'mtime'  1620515884
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 10 274_2_Harold_Flake_ _Tour_Of_The_Athabasca_Glaciar electronic unsorted
                                      'tag_artist'  Harold Flake
                                     'tag_release'  Single
                                       'tag_title'  Tour Of The Athabasca Glaciar
                                             'bpm'  144.4
                                    'search_title'  'athabasca':4 'glaciar':5 'of':2 'the':3 'tour':1
                                   'search_artist'  'flake':2 'harold':1
                                  'search_release'  'single':1
                                     'search_rest'  '2':2 '274':1 'athabasca':8 'electronic':10 'flake':4 'glaciar':9 'harold':3 'of':6 'the':7 'tour':5 'unsorted':11
                                    'search_combo'  '2':10 '274':9 'athabasca':4A,16 'electronic':18 'flake':7B,12 'glaciar':5A,17 'harold':6B,11 'of':2A,14 'single':8C 'the':3A,15 'tour':1A,13 'unsorted':19
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', '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-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620515883.8945758  (2021-05-09 01:18:03)
                             'size'  11863539