======================== unified (from filesystem) ========================
                                         'bitrate'  '319.725'
                                        'duration'  '148'
                                          'artist'  'Don Cherry'
                                     'text_people'  ''
                                         'release'  'The best of the Columbia & Monument sides'
                                           'title'  "I'll Be Around "
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['free jazz', 'avant garde', 'fusion', 'jazz', 'trumpet']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '418'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.580'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The best of the Columbia & Monument sides'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         "I'll Be Around "
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Cherry'
'TRCK' (Track number/Position in set)               '418'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['free jazz', 'avant garde', 'fusion', 'jazz', 'trumpet']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.78 dB'
'TXXX:replaygain_track_peak'                        '0.602874'

========================== row from database ==========================
                                              'id'  1518991
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-418 - Don Cherry - I_ll Be Around .mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  148
                                           'genre'  prerock-unsorted
                                        'filesize'  5930079
                                           'mtime'  1620387601
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 418 I_ll prerock unsorted
                                      'tag_artist'  Don Cherry
                                     'tag_release'  The best of the Columbia & Monument sides
                                       'tag_title'  I'll Be Around 
                                             'bpm'  145.58
                                    'search_title'  'around':5 'be':4 'i':1 'ill':3 'll':2
                                   'search_artist'  'cherry':2 'don':1
                                  'search_release'  'best':2 'columbia':4 'monument':5 'of':3 'sides':6 'the':1
                                     'search_rest'  '00oldiepop':5 '1956':6 '418':7 'country':4 'exotica':2 'i':8 'jazz':1 'll':9 'oldies':3 'prerock':10 'unsorted':11
                                    'search_combo'  '00oldiepop':18 '1956':19 '418':20 'around':5A 'be':4A 'best':9C 'cherry':7B 'columbia':11C 'country':17 'don':6B 'exotica':15 'i':1A,21 'ill':3A 'jazz':14 'll':2A,22 'monument':12C 'of':10C 'oldies':16 'prerock':23 'sides':13C 'the':8C 'unsorted':24
                                    'tag_tracknum'  418
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['free jazz', 'avant garde', 'fusion', 'jazz', 'trumpet']
                                        'tag_date'  1956
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620387600.7797167  (2021-05-07 13:40:00)
                             'size'  5930079