======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '185'
                                          'artist'  'Washboard Rhythm Kings'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Walking My Baby Back Home 8-5-1931'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'early jazz', 'swing', 'skiffle', 'blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1931'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '92.4'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '92.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1931'
'TIT2' (Title/songname/content description)         'Walking My Baby Back Home 8-5-1931'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '185000'
'TPE1' (Lead performer(s)/Soloist(s))               'Washboard Rhythm Kings'
'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', 'early jazz', 'swing', 'skiffle', 'blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.08 dB'
'TXXX:replaygain_track_peak'                        '0.529826'

========================== row from database ==========================
                                              'id'  1497633
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Washboard Rhythm Kings/Washboard Rhythm Kings - Walkin_ My Baby Back Home 8-5-1931.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  185
                                           'genre'  prerock-swing
                                        'filesize'  3762901
                                           'mtime'  1620562711
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Walkin_ prerock swing
                                      'tag_artist'  Washboard Rhythm Kings
                                     'tag_release'  None
                                       'tag_title'  Walking My Baby Back Home 8-5-1931
                                             'bpm'  92.4
                                    'search_title'  '1931':8 '5':7 '8':6 '851931':9 'baby':3 'back':4 'home':5 'my':2 'walking':1
                                   'search_artist'  'kings':3 'rhythm':2 'washboard':1
                                  'search_release'  
                                     'search_rest'  'prerock':2 'swing':3 'walkin':1
                                    'search_combo'  '1931':8A '5':7A '8':6A '851931':9A 'baby':3A 'back':4A 'home':5A 'kings':12B 'my':2A 'prerock':14 'rhythm':11B 'swing':15 'walkin':13 'walking':1A 'washboard':10B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['all', 'jazz', 'early jazz', 'swing', 'skiffle', 'blues']
                                        'tag_date'  1931
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562710.6525238  (2021-05-09 14:18:30)
                             'size'  3762901