======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '182'
                                          'artist'  "Arthur Pryor's Band"
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'That Flying Rag'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'ragtime']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1911'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '108.704'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '108.704'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1911'
'TIT2' (Title/songname/content description)         'That Flying Rag'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               "Arthur Pryor's Band"
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'jazz', 'ragtime']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.11 dB'
'TXXX:replaygain_track_peak'                        '0.663917'

========================== row from database ==========================
                                              'id'  1498681
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1911/Arthur Pryor_s Band - That Flying Rag 15-11-1911.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  182
                                           'genre'  prerock-instrumental
                                        'filesize'  3647282
                                           'mtime'  1642082563
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1911 Pryor_s 15 11 1911 prerock instrumental
                                      'tag_artist'  Arthur Pryor's Band
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  That Flying Rag
                                             'bpm'  108.704
                                    'search_title'  'flying':2 'rag':3 'that':1
                                   'search_artist'  'arthur':1 'band':5 'pryor':2 'pryors':4 's':3
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1911':6 'country':4 'exotica':2 'instrumental':10 'jazz':1 'oldies':3 'prerock':9 'pryor':7 's':8
                                    'search_combo'  '00oldiepop':18 '1911':19 'album':10C 'arthur':4B 'band':8B 'country':17 'exotica':15 'flying':2A 'instrumental':23 'jazz':14 'non':9C 'nonalbum':11C 'oldies':16 'prerock':22 'pryor':5B,20 'pryors':7B 'rag':3A 's':6B,21 'that':1A 'tracks':12C,13C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['all', 'jazz', 'ragtime']
                                        'tag_date'  1911
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642082563.2934313  (2022-01-13 15:02:43)
                             'size'  3647282