======================== unified (from filesystem) ========================
                                         'bitrate'  '202.908'
                                        'duration'  '198'
                                          'artist'  'Jack Rose & The Black Twig Pickers'
                                     'text_people'  ''
                                         'release'  'Jack Rose & The Black Twig Pickers'
                                           'title'  'Hand Me Down My Walking Cane'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'bluegrass', 'alt country', 'folk', 'kewl']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '108.3'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Jack Rose & The Black Twig Pickers'
'TBPM' (BPM (beats per minute))                     '108.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2009'
'TFLT' (File type)                                  'MPG/3'
'TIT2' (Title/songname/content description)         'Hand Me Down My Walking Cane'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Rose & The Black Twig Pickers'
'TPE2' (Band/orchestra/accompaniment)               'Jack Rose & The Black Twig Pickers'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'VHF'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['country', 'bluegrass', 'alt country', 'folk', 'kewl']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.419569'
'USER:Cop'                                          ('yright notice. These materials are protected by United States copyright law '
 'and by international treaties. You may use these materials for your '
 'personal, non-commercial use only. You may not otherwise reproduce, '
 'distribute, publicly perform, publicly display, or create derivative works '
 'of these materials, unless authorized by the appropriate copyright owner(s).')

========================== row from database ==========================
                                              'id'  727147
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/jack rose & the black twig pickers/03 Hand Me Down My Walking Cane.mp3
                                         'working'  None
                                         'bitrate'  202
                                    'duration_sec'  198
                                           'genre'  loc-namerica-country
                                        'filesize'  5042701
                                           'mtime'  1621629045
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm jack rose the black twig pickers 03 loc namerica country
                                      'tag_artist'  Jack Rose & The Black Twig Pickers
                                     'tag_release'  Jack Rose & The Black Twig Pickers
                                       'tag_title'  Hand Me Down My Walking Cane
                                             'bpm'  108.3
                                    'search_title'  'cane':6 'down':3 'hand':1 'me':2 'my':4 'walking':5
                                   'search_artist'  'black':4 'jack':1 'pickers':6 'rose':2 'the':3 'twig':5
                                  'search_release'  'black':4 'jack':1 'pickers':6 'rose':2 'the':3 'twig':5
                                     'search_rest'  'black':4 'country':9 'jack':1 'loc':7 'namerica':8 'pickers':6 'rose':2 'the':3 'twig':5
                                    'search_combo'  'black':10B,16C,22 'cane':6A 'country':27 'down':3A 'hand':1A 'jack':7B,13C,19 'loc':25 'me':2A 'my':4A 'namerica':26 'pickers':12B,18C,24 'rose':8B,14C,20 'the':9B,15C,21 'twig':11B,17C,23 'walking':5A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'bluegrass', 'alt country', 'folk', 'kewl']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629045.4229693  (2021-05-21 22:30:45)
                             'size'  5042701