======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '165'
                                          'artist'  'Voices Of Walter Schumann'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Ballad Of Davy Crockett'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'space age pop', 'easy listening', 'all', 'ultra-lounge']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '104'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.895'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1955'
'TENC' (Encoded by)                                 'JukeboxJunkie from a lossless source'
'TIT2' (Title/songname/content description)         'The Ballad Of Davy Crockett'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Voices Of Walter Schumann'
'TRCK' (Track number/Position in set)               '104'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'space age pop', 'easy listening', 'all', 'ultra-lounge']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+6.49 dB'
'TXXX:replaygain_track_peak'                        '0.193917'

========================== row from database ==========================
                                              'id'  1444864
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1955/1955-104 - Voices Of Walter Schumann - The Ballad Of Davy Crockett.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  165
                                           'genre'  prerock-unsorted
                                        'filesize'  6625074
                                           'mtime'  1620387481
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1955 1955 104 prerock unsorted
                                      'tag_artist'  Voices Of Walter Schumann
                                     'tag_release'  None
                                       'tag_title'  The Ballad Of Davy Crockett
                                             'bpm'  145.895
                                    'search_title'  'ballad':2 'crockett':5 'davy':4 'of':3 'the':1
                                   'search_artist'  'of':2 'schumann':4 'voices':1 'walter':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '104':7 '1955':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':14 '104':16 '1955':15 'ballad':2A 'country':13 'crockett':5A 'davy':4A 'exotica':11 'jazz':10 'of':3A,7B 'oldies':12 'prerock':17 'schumann':9B 'the':1A 'unsorted':18 'voices':6B 'walter':8B
                                    'tag_tracknum'  104
                                      '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'space age pop', 'easy listening', 'all', 'ultra-lounge']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387481.325816  (2021-05-07 13:38:01)
                             'size'  6625074