======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '198'
                                          'artist'  'Peerless Quartet'
                                     'text_people'  ''
                                         'release'  'Columbia  2642 (78005)'
                                           'title'  "While You're Away (Pack Up Your Troubles In A Bundle Of Joy)"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'all', 'cpdp', 'minstrel', 'acoustic era']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1918'
                                        'comments'  ''
                                           'genre'  'prerock-minstrel'
                                             'bpm'  '117.1'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Columbia  2642 (78005)'
'TBPM' (BPM (beats per minute))                     '117.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-minstrel'
'TDRC' (Recording time)                             '1918-12-21'
'TIT2' (Title/songname/content description)         "While You're Away (Pack Up Your Troubles In A Bundle Of Joy)"
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '198000'
'TPE1' (Lead performer(s)/Soloist(s))               'Peerless Quartet'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spotify', 'all', 'cpdp', 'minstrel', 'acoustic era']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.790691'

========================== row from database ==========================
                                              'id'  1515783
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1918/Peerless Quartet - While You_re Away 21-12-1918.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  198
                                           'genre'  prerock-minstrel
                                        'filesize'  4113143
                                           'mtime'  1642095524
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1918 You_re 21 12 1918 prerock minstrel
                                      'tag_artist'  Peerless Quartet
                                     'tag_release'  Columbia  2642 (78005)
                                       'tag_title'  While You're Away (Pack Up Your Troubles In A Bundle Of Joy)
                                             'bpm'  117.1
                                    'search_title'  'a':12 'away':5 'bundle':13 'in':11 'joy':15,16 'of':14 'pack':6,7 're':3 'troubles':10 'up':8 'while':1 'you':2 'your':9 'youre':4
                                   'search_artist'  'peerless':1 'quartet':2
                                  'search_release'  '2642':2 '78005':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1918':6 '21':9 'country':4 'exotica':2 'jazz':1 'minstrel':11 'oldies':3 'prerock':10 're':8 'you':7
                                    'search_combo'  '00oldiepop':27 '1918':28 '21':31 '2642':20C '78005':21C,22C 'a':12A 'away':5A 'bundle':13A 'columbia':19C 'country':26 'exotica':24 'in':11A 'jazz':23 'joy':15A,16A 'minstrel':33 'of':14A 'oldies':25 'pack':6A,7A 'peerless':17B 'prerock':32 'quartet':18B 're':3A,30 'troubles':10A 'up':8A 'while':1A 'you':2A,29 'your':9A 'youre':4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', '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-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['spotify', 'all', 'cpdp', 'minstrel', 'acoustic era']
                                        'tag_date'  1918
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642095524.4790637  (2022-01-13 18:38:44)
                             'size'  4113143