======================== unified (from filesystem) ========================
                                         'bitrate'  '209.123'
                                        'duration'  '128'
                                          'artist'  'GOLDEN GATE QUARTET'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'GO TELL IT ON THE MOUNTAIN'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', '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'  "['gospel', 'blues', 'spiritual', 'jazz', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '144.645'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.645'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'GO TELL IT ON THE MOUNTAIN'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'GOLDEN GATE QUARTET'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
'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'                        '+0.64 dB'
'TXXX:replaygain_track_peak'                        '0.598338'

========================== row from database ==========================
                                              'id'  967009
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Golden Gate Quartet - Go Tell It on the Mountain.wma.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  128
                                           'genre'  loc-namerica-country
                                        'filesize'  3374507
                                           'mtime'  1621628109
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Golden Gate Quartet Go Tell It on the Mountain.wma loc namerica country
                                      'tag_artist'  GOLDEN GATE QUARTET
                                     'tag_release'  None
                                       'tag_title'  GO TELL IT ON THE MOUNTAIN
                                             'bpm'  144.645
                                    'search_title'  'go':1 'it':3 'mountain':6 'on':4 'tell':2 'the':5
                                   'search_artist'  'gate':2 'golden':1 'quartet':3
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'gate':8 'go':10 'golden':7 'it':12 'jazz':1 'loc':18 'mountain':15 'mountainwma':17 'music':6 'namerica':19 'old':5 'oldies':3 'on':13 'quartet':9 'tell':11 'the':14 'wma':16
                                    'search_combo'  'country':13 'exotica':11 'gate':8B,17 'go':1A,19 'golden':7B,16 'it':3A,21 'jazz':10 'loc':27 'mountain':6A,24 'mountainwma':26 'music':15 'namerica':28 'old':14 'oldies':12 'on':4A,22 'quartet':9B,18 'tell':2A,20 'the':5A,23 'wma':25
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', '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'  ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628108.8273966  (2021-05-21 22:15:08)
                             'size'  3374507