======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '199'
                                          'artist'  'Bill Le Sage Directions In Jazz Unit'
                                     'text_people'  'Duke Ellington'
                                         'release'  'radio jazz 13'
                                           'title'  'Come Sunday'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '145.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '145.4'
'TCOM' (Composer)                                   'Duke Ellington'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Come Sunday'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Le Sage Directions In Jazz Unit'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:REPLAYGAIN_REFERENCE_LOUDNESS'                '89.0 dB'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.12 dB'
'TXXX:replaygain_track_peak'                        '0.675119'

========================== row from database ==========================
                                              'id'  1481996
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Bill Le Sage - come sunday.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  199
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7978880
                                           'mtime'  1620541329
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic come sunday prerock jb unsorted
                                      'tag_artist'  Bill Le Sage Directions In Jazz Unit
                                     'tag_release'  radio jazz 13
                                       'tag_title'  Come Sunday
                                             'bpm'  145.4
                                    'search_title'  'come':1 'sunday':2
                                   'search_artist'  'bill':1 'directions':4 'in':5 'jazz':6 'le':2 'sage':3 'unit':7
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'come':2 'jb':5 'prerock':4 'sunday':3 'unsorted':6
                                    'search_combo'  '00poprockelectronic':12 'bill':3B 'come':1A,13 'directions':6B 'in':7B 'jazz':8B,11C 'jb':16 'le':4B 'prerock':15 'radio':10C 'sage':5B 'sunday':2A,14 'unit':9B 'unsorted':17
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541328.8418252  (2021-05-09 08:22:08)
                             'size'  7978880