======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '185'
                                          'artist'  'Warren Storm'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Prisoner's Song"
                                           'quals'  ("['Q-JZFKS-1', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['swamp pop', 'garage rock', 'blues', 'rock and roll', 'theme time radio "
 "hour']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  '20'
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '110.242'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-455 POS 81'
'COMM:ID3v1 Comment:XXX'                            '58-455 POS 81'
'TBPM' (BPM (beats per minute))                     '110.242'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Sicherer Modus)'
'TIT2' (Title/songname/content description)         "Prisoner's Song"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Warren Storm'
'TRCK' (Track number/Position in set)               '05/20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swamp pop', 'garage rock', 'blues', 'rock and roll', 'theme time radio hour']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.366014'

========================== row from database ==========================
                                              'id'  1501517
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-455 - Warren Storm - Prisoner_s Song.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  185
                                           'genre'  prerock-unsorted
                                        'filesize'  7438706
                                           'mtime'  1620387774
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 455 Prisoner_s prerock unsorted
                                      'tag_artist'  Warren Storm
                                     'tag_release'  None
                                       'tag_title'  Prisoner's Song
                                             'bpm'  110.242
                                    'search_title'  'prisoner':1 'prisoners':3 's':2 'song':4
                                   'search_artist'  'storm':2 'warren':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1958':6 '455':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'prisoner':9 's':10 'unsorted':12
                                    'search_combo'  '00oldiepop':11 '1958':12 '455':14 '58':13 'country':10 'exotica':8 'jazz':7 'oldies':9 'prerock':17 'prisoner':1A,15 'prisoners':3A 's':2A,16 'song':4A 'storm':6B 'unsorted':18 'warren':5B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['swamp pop', 'garage rock', 'blues', 'rock and roll', 'theme time radio hour']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387774.1788013  (2021-05-07 13:42:54)
                             'size'  7438706