======================== unified (from filesystem) ========================
                                         'bitrate'  '128.581'
                                        'duration'  '138'
                                          'artist'  'George Morgan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You're the Only Star (In My Blue Heaven)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', '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', 'honky tonk', 'americana', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '142.910'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '142.910'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "You're the Only Star (In My Blue Heaven)"
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'George Morgan'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Length'                                       '138316'
'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', 'honky tonk', 'americana', 'classic country']
'TXXX:q-bass'                                       '2'
'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'                        '-0.18 dB'
'TXXX:replaygain_track_peak'                        '0.568042'

========================== row from database ==========================
                                              'id'  1499656
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/George Morgan - You_re The Only Star In My Blue Heaven.wma.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  138
                                           'genre'  loc-namerica-country
                                        'filesize'  2228224
                                           'mtime'  1621628098
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music You_re The Heaven.wma loc namerica country
                                      'tag_artist'  George Morgan
                                     'tag_release'  None
                                       'tag_title'  You're the Only Star (In My Blue Heaven)
                                             'bpm'  142.91
                                    'search_title'  'blue':10 'heaven':11,12 'in':7,8 'my':9 'only':5 're':2 'star':6 'the':4 'you':1 'youre':3
                                   'search_artist'  'george':1 'morgan':2
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'heaven':10 'heavenwma':12 'jazz':1 'loc':13 'music':6 'namerica':14 'old':5 'oldies':3 're':8 'the':9 'wma':11 'you':7
                                    'search_combo'  'blue':10A 'country':18 'exotica':16 'george':13B 'heaven':11A,12A,24 'heavenwma':26 'in':7A,8A 'jazz':15 'loc':27 'morgan':14B 'music':20 'my':9A 'namerica':28 'old':19 'oldies':17 'only':5A 're':2A,22 'star':6A 'the':4A,23 'wma':25 'you':1A,21 'youre':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3B
                                           '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-2', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'honky tonk', 'americana', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628097.9210064  (2021-05-21 22:14:57)
                             'size'  2228224