======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '268'
                                          'artist'  'Tony Coe & Alan Barnes'
                                     'text_people'  ''
                                         'release'  'radio jazz 13'
                                           'title'  'how high the moon (hamilton & lewis)'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-4', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '144.5'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '144.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'how high the moon (hamilton & lewis)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tony Coe & Alan Barnes'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1'
'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'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.95 dB'
'TXXX:replaygain_track_peak'                        '0.908287'

========================== row from database ==========================
                                              'id'  1482453
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Tony Coe & Alan Barnes - how high the moon (hamilton & lewis).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  268
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  8594828
                                           'mtime'  1620574515
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic prerock jb unsorted
                                      'tag_artist'  Tony Coe & Alan Barnes
                                     'tag_release'  radio jazz 13
                                       'tag_title'  how high the moon (hamilton & lewis)
                                             'bpm'  144.5
                                    'search_title'  'hamilton':5,6 'high':2 'how':1 'lewis':7,8 'moon':4 'the':3
                                   'search_artist'  'alan':3 'barnes':4 'coe':2 'tony':1
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jb':3 'prerock':2 'unsorted':4
                                    'search_combo'  '00poprockelectronic':15 'alan':11B 'barnes':12B 'coe':10B 'hamilton':5A,6A 'high':2A 'how':1A 'jazz':14C 'jb':17 'lewis':7A,8A 'moon':4A 'prerock':16 'radio':13C 'the':3A 'tony':9B 'unsorted':18
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-4', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620574514.710429  (2021-05-09 17:35:14)
                             'size'  8594828