======================== unified (from filesystem) ========================
                                         'bitrate'  '146.062'
                                        'duration'  '240'
                                          'artist'  'Minnie Pearl'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Comedy with Minnie Pearl'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'all', 'oldies', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '106.981'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '106.981'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'Comedy with Minnie Pearl'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Minnie Pearl'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Length'                                       '240045'
'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', 'all', 'oldies', 'classic country']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+4.17 dB'
'TXXX:replaygain_track_peak'                        '0.355749'

========================== row from database ==========================
                                              'id'  966750
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Minnie pearl & Hank Williams - Live At The Grand Ole Opry 1950.wma.mp3
                                         'working'  None
                                         'bitrate'  146
                                    'duration_sec'  240
                                           'genre'  loc-namerica-country
                                        'filesize'  4386816
                                           'mtime'  1621628245
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music pearl & Hank Williams Live At The Grand Ole Opry 1950.wma loc namerica country
                                      'tag_artist'  Minnie Pearl
                                     'tag_release'  None
                                       'tag_title'  Comedy with Minnie Pearl
                                             'bpm'  106.981
                                    'search_title'  'comedy':1 'minnie':3 'pearl':4 'with':2
                                   'search_artist'  'minnie':1 'pearl':2
                                  'search_release'  
                                     'search_rest'  '1950':16 '1950wma':18 'at':11 'country':4 'exotica':2 'grand':13 'hank':8 'jazz':1 'live':10 'loc':19 'music':6 'namerica':20 'old':5 'oldies':3 'ole':14 'opry':15 'pearl':7 'the':12 'williams':9 'wma':17
                                    'search_combo'  '1950':22 '1950wma':24 'at':17 'comedy':1A 'country':10 'exotica':8 'grand':19 'hank':14 'jazz':7 'live':16 'loc':25 'minnie':3A,5B 'music':12 'namerica':26 'old':11 'oldies':9 'ole':20 'opry':21 'pearl':4A,6B,13 'the':18 'williams':15 'with':2A 'wma':23
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'oldies', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628244.688131  (2021-05-21 22:17:24)
                             'size'  4386816