======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '175'
                                          'artist'  'Kane Helen'
                                     'text_people'  ''
                                         'release'  'Helen Kane   * Breda 4000'
                                           'title'  'Button up your overcoat    14-3-1929'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'set-th-incharacter;prerock-vocal'
                                             'bpm'  '84.5'
                                             'key'  '7B'
                                        '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)                     'Helen Kane   * Breda 4000'
'TBPM' (BPM (beats per minute))                     '84.5'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-incharacter', 'prerock-vocal']
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         'Button up your overcoat    14-3-1929'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Betty Boop (Helen Kane)'
'TPE2' (Band/orchestra/accompaniment)               'Kane Helen'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.742367'

========================== row from database ==========================
                                              'id'  1463558
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Helen Kane - misc/Helen Kane - Button Up Your Overcoat 14-3-1929.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  175
                                           'genre'  set-th-incharacter;prerock-vocal
                                        'filesize'  3549056
                                           'mtime'  1637438299
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country misc Up Your Overcoat set th incharacter;prerock vocal
                                      'tag_artist'  Kane Helen
                                     'tag_release'  Helen Kane   * Breda 4000
                                       'tag_title'  Button up your overcoat    14-3-1929
                                             'bpm'  84.5
                                    'search_title'  '14':5 '1431929':8 '1929':7 '3':6 'button':1 'overcoat':4 'up':2 'your':3
                                   'search_artist'  'helen':2 'kane':1
                                  'search_release'  '4000':4 'breda':3 'helen':1 'kane':2
                                     'search_rest'  'country':4 'exotica':2 'incharacter':11,13 'jazz':1 'misc':5 'oldies':3 'overcoat':8 'prerock':12,14 'set':9 'th':10 'up':6 'vocal':15 'your':7
                                    'search_combo'  '14':5A '1431929':8A '1929':7A '3':6A '4000':14C 'breda':13C 'button':1A 'country':18 'exotica':16 'helen':10B,11C 'incharacter':25,27 'jazz':15 'kane':9B,12C 'misc':19 'oldies':17 'overcoat':4A,22 'prerock':26,28 'set':23 'th':24 'up':2A,20 'vocal':29 'your':3A,21
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637438299.4121702  (2021-11-20 20:58:19)
                             'size'  3549056