======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '195'
                                          'artist'  "Sanford's Famous Orchestra"
                                     'text_people'  ''
                                         'release'  'Emerson 10139'
                                           'title'  'Sweet And Low (waltz) 1919'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '84.9'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Emerson 10139'
'TBPM' (BPM (beats per minute))                     '84.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         'Sweet And Low (waltz) 1919'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '195000'
'TPE1' (Lead performer(s)/Soloist(s))               "Sanford's Famous Orchestra"
'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:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.934494'

========================== row from database ==========================
                                              'id'  1520947
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/veryearly/1919/Sanford_s Famous Orchestra - Sweet And Low (waltz) 1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  195
                                           'genre'  prerock-swing
                                        'filesize'  3975659
                                           'mtime'  1620562747
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm veryearly Sanford_s prerock swing
                                      'tag_artist'  Sanford's Famous Orchestra
                                     'tag_release'  Emerson 10139
                                       'tag_title'  Sweet And Low (waltz) 1919
                                             'bpm'  84.9
                                    'search_title'  '1919':6 'and':2 'low':3 'sweet':1 'waltz':4,5
                                   'search_artist'  'famous':4 'orchestra':5 's':2 'sanford':1 'sanfords':3
                                  'search_release'  '10139':2 'emerson':1
                                     'search_rest'  'prerock':4 's':3 'sanford':2 'swing':5 'veryearly':1
                                    'search_combo'  '10139':13C '1919':6A 'and':2A 'emerson':12C 'famous':10B 'low':3A 'orchestra':11B 'prerock':17 's':8B,16 'sanford':7B,15 'sanfords':9B 'sweet':1A 'swing':18 'veryearly':14 'waltz':4A,5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           '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-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562746.601605  (2021-05-09 14:19:06)
                             'size'  3975659