======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '212'
                                          'artist'  'Jeanette MacDonald & Nelson Eddy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Indian Love Call (78 rpm)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-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'  "['out of our heads', 'campy', 'female vocalist', '30s', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '145.8'
                                             'key'  '7A'
                                        '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))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1936-09-19'
'TIT2' (Title/songname/content description)         'Indian Love Call (78 rpm)'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '212000'
'TPE1' (Lead performer(s)/Soloist(s))               'Jeanette MacDonald & Nelson Eddy'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['out of our heads', 'campy', 'female vocalist', '30s', 'vocal']
'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'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.470047'

========================== row from database ==========================
                                              'id'  1475645
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Jeanette MacDonald - Indian Love Call (78 rpm) (+ Nelson Eddy) 19-9-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  212
                                           'genre'  prerock-vocal
                                        'filesize'  4302326
                                           'mtime'  1620666456
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1936 (+ Eddy) 19 9 1936 prerock vocal
                                      'tag_artist'  Jeanette MacDonald & Nelson Eddy
                                     'tag_release'  None
                                       'tag_title'  Indian Love Call (78 rpm)
                                             'bpm'  145.8
                                    'search_title'  '78':4,5 'call':3 'indian':1 'love':2 'rpm':6,7
                                   'search_artist'  'donald':6 'eddy':4 'jeanette':1 'mac':5 'macdonald':2 'nelson':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '19':9 '1936':6 '9':10 'country':4 'eddy':7,8 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'vocal':12
                                    'search_combo'  '00oldiepop':18 '19':22 '1936':19 '78':4A,5A '9':23 'call':3A 'country':17 'donald':13B 'eddy':11B,20,21 'exotica':15 'indian':1A 'jazz':14 'jeanette':8B 'love':2A 'mac':12B 'macdonald':9B 'nelson':10B 'oldies':16 'prerock':24 'rpm':6A,7A 'vocal':25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['out of our heads', 'campy', 'female vocalist', '30s', 'vocal']
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666455.9382439  (2021-05-10 19:07:35)
                             'size'  4302326