======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '245'
                                          'artist'  'Lewis James'
                                     'text_people'  ''
                                         'release'  'Edison 80503-L'
                                           'title'  'By The Babbling Brook (whistling - Sibyl Sanderson Fagan)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', '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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'electronic', 'gramophone', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '145.163'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Edison 80503-L'
'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         'By The Babbling Brook (whistling - Sibyl Sanderson Fagan)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lewis James'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'jazz', 'electronic', 'gramophone', 'swing']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.96 dB'
'TXXX:replaygain_track_peak'                        '0.388899'

========================== row from database ==========================
                                              'id'  1435875
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1919/Lewis James - By The Babbling Brook (whistling - Sibyl Sanderson Fagan) -5-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  245
                                           'genre'  prerock-vocal
                                        'filesize'  4914994
                                           'mtime'  1642081261
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1919 1919 prerock vocal
                                      'tag_artist'  Lewis James
                                     'tag_release'  Edison 80503-L
                                       'tag_title'  By The Babbling Brook (whistling - Sibyl Sanderson Fagan)
                                             'bpm'  145.163
                                    'search_title'  'babbling':3 'brook':4 'by':1 'fagan':9,10 'sanderson':8 'sibyl':7 'the':2 'whistling':5,6
                                   'search_artist'  'james':2 'lewis':1
                                  'search_release'  '80503':2 '80503l':4 'edison':1 'l':3
                                     'search_rest'  '00oldiepop':5 '1919':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'vocal':8
                                    'search_combo'  '00oldiepop':21 '1919':22 '80503':14C '80503l':16C 'babbling':3A 'brook':4A 'by':1A 'country':20 'edison':13C 'exotica':18 'fagan':9A,10A 'james':12B 'jazz':17 'l':15C 'lewis':11B 'oldies':19 'prerock':23 'sanderson':8A 'sibyl':7A 'the':2A 'vocal':24 'whistling':5A,6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', '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-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['all', 'jazz', 'electronic', 'gramophone', 'swing']
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642081261.4794219  (2022-01-13 14:41:01)
                             'size'  4914994