======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '138'
                                          'artist'  'Sammy Kaye'
                                     'text_people'  ''
                                         'release'  'SpaceAgePopMusic'
                                           'title'  'The House of the Rising Sun'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'jazz', 'big band', '40s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '125.9'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM:Checksum:XXX'                                 'AG# F0EE56DCX'
'TALB' (Album/Movie/Show title)                     'SpaceAgePopMusic'
'TBPM' (BPM (beats per minute))                     '125.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'The House of the Rising Sun'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sammy Kaye'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.82.02, LAME dll 3.93, 192 Kbit/s, Stereo, Normal quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'jazz', 'big band', '40s', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.507589'

========================== row from database ==========================
                                              'id'  1326771
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Spaceagepopmusic/Sammy Kaye - The House of the Rising Sun.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  138
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3328000
                                           'mtime'  1620540741
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip Spaceagepopmusic prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Sammy Kaye
                                     'tag_release'  SpaceAgePopMusic
                                       'tag_title'  The House of the Rising Sun
                                             'bpm'  125.9
                                    'search_title'  'house':2 'of':3 'rising':4 'sun':5 'the':1
                                   'search_artist'  'kaye':2 'sammy':1
                                  'search_release'  'age':3 'music':5 'pop':4 'space':2 'spaceagepopmusic':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'bossa':10 'exotica':9 'jazz':6 'jb':5 'lounge':7 'or':8 'prerock':4 'spaceagepopmusic':3
                                    'search_combo'  '00poprockelectronic':13 '00trip':14 'age':10C 'bossa':22 'exotica':21 'house':2A 'jazz':18 'jb':17 'kaye':7B 'lounge':19 'music':12C 'of':3A 'or':20 'pop':11C 'prerock':16 'rising':4A 'sammy':6B 'space':9C 'spaceagepopmusic':8C,15 'sun':5A 'the':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'jazz', 'big band', '40s', 'swing']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540740.9717498  (2021-05-09 08:12:20)
                             'size'  3328000