======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '172'
                                          'artist'  "Bailey's Lucky Seven"
                                     'text_people'  ''
                                         'release'  'Gennett  5013-A'
                                           'title'  'Baby Blue Eyes'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['20s', 'jazz', '30s', 'ballroom', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1922'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '99.0'
                                             'key'  '9B'
                                        '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)                     'Gennett  5013-A'
'TBPM' (BPM (beats per minute))                     '99.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1922-12-08'
'TIT2' (Title/songname/content description)         'Baby Blue Eyes'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '172000'
'TPE1' (Lead performer(s)/Soloist(s))               "Bailey's Lucky Seven"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['20s', 'jazz', '30s', 'ballroom', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.31 dB'
'TXXX:replaygain_track_peak'                        '0.587509'

========================== row from database ==========================
                                              'id'  1512144
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1922/Bailey_s Lucky Seven - Baby blue eyes  8-12-1922.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  172
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3558193
                                           'mtime'  1620524943
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1922 Bailey_s blue eyes 8 12 1922 prerock jb jazz unsorted
                                      'tag_artist'  Bailey's Lucky Seven
                                     'tag_release'  Gennett  5013-A
                                       'tag_title'  Baby Blue Eyes
                                             'bpm'  99.0
                                    'search_title'  'baby':1 'blue':2 'eyes':3
                                   'search_artist'  'bailey':1 'baileys':3 'lucky':4 's':2 'seven':5
                                  'search_release'  '5013':2 '5013a':4 'a':3 'gennett':1
                                     'search_rest'  '00oldiepop':5 '1922':6 '8':11 'bailey':7 'blue':9 'country':4 'exotica':2 'eyes':10 'jazz':1 'jb':13 'oldies':3 'prerock':12 's':8 'unsorted':14
                                    'search_combo'  '00oldiepop':17 '1922':18 '5013':10C '5013a':12C '8':23 'a':11C 'baby':1A 'bailey':4B,19 'baileys':6B 'blue':2A,21 'country':16 'exotica':14 'eyes':3A,22 'gennett':9C 'jazz':13 'jb':25 'lucky':7B 'oldies':15 'prerock':24 's':5B,20 'seven':8B 'unsorted':26
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['20s', 'jazz', '30s', 'ballroom', 'swing']
                                        'tag_date'  1922
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524942.974407  (2021-05-09 03:49:02)
                             'size'  3558193