======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '160'
                                          'artist'  'Svend Asmussen'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "It Don't Mean A Thing"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['violin', 'jazz', 'jazz violin', 'swing', 'danish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '119.4'
                                             'key'  '6A'
                                        '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))                     '119.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         "It Don't Mean A Thing"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '160000'
'TPE1' (Lead performer(s)/Soloist(s))               'Svend Asmussen'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['violin', 'jazz', 'jazz violin', 'swing', 'danish']
'TXXX:q-bass'                                       '2'
'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-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.73 dB'
'TXXX:replaygain_track_peak'                        '0.924743'

========================== row from database ==========================
                                              'id'  1519826
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/Svend Asmussen - It Don_t Mean A Thing 1943.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  160
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3256801
                                           'mtime'  1620527447
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 Don_t 1943 prerock jb jazz unsorted
                                      'tag_artist'  Svend Asmussen
                                     'tag_release'  None
                                       'tag_title'  It Don't Mean A Thing
                                             'bpm'  119.4
                                    'search_title'  'a':6 'don':2 'dont':4 'it':1 'mean':5 't':3 'thing':7
                                   'search_artist'  'asmussen':2 'svend':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 'country':4 'don':7 'exotica':2 'jazz':1 'jb':10 'oldies':3 'prerock':9 't':8 'unsorted':11
                                    'search_combo'  '00oldiepop':14 '1943':15 'a':6A 'asmussen':9B 'country':13 'don':2A,16 'dont':4A 'exotica':11 'it':1A 'jazz':10 'jb':19 'mean':5A 'oldies':12 'prerock':18 'svend':8B 't':3A,17 'thing':7A 'unsorted':20
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-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-PLAY-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['violin', 'jazz', 'jazz violin', 'swing', 'danish']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527446.6705506  (2021-05-09 04:30:46)
                             'size'  3256801