======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '191'
                                          'artist'  'Jr. Walker & The All Stars'
                                     'text_people'  ''
                                         'release'  'JR. WALKER & THE ALL-STARS'
                                           'title'  'Way back home'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'motown', 'funk', '60s', '7soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '121.337'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000017B6 000017B6 00007DE4'
'COMM:iTunNORM:eng'                                 (' 000017B6 000017B6 00007DE4 00007DE4 0002A501 0002A501 0000784B 0000784B '
 '00023613 00023613')
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'TALB' (Album/Movie/Show title)                     'JR. WALKER & THE ALL-STARS'
'TBPM' (BPM (beats per minute))                     '121.337'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Way back home'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Junior Walker and the All Stars'
'TPE2' (Band/orchestra/accompaniment)               'Jr. Walker & The All Stars'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'motown', 'funk', '60s', '7soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.332271'

========================== row from database ==========================
                                              'id'  1491554
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/jr walker & the all stars - way back home.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  191
                                           'genre'  funk or soul
                                        'filesize'  7659530
                                           'mtime'  1628357774
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch jr walker the all stars way funk or soul
                                      'tag_artist'  Jr. Walker & The All Stars
                                     'tag_release'  JR. WALKER & THE ALL-STARS
                                       'tag_title'  Way back home
                                             'bpm'  121.337
                                    'search_title'  'back':2 'home':3 'way':1
                                   'search_artist'  'all':5 'jr':1,2 'stars':6 'the':4 'walker':3
                                  'search_release'  'all':5 'allstars':7 'jr':1,2 'stars':6 'the':4 'walker':3
                                     'search_rest'  '00dutch':4 '00mid':1 'all':8 'europe':3 'funk':11 'jr':5 'north':2 'or':12 'soul':13 'stars':9 'the':7 'walker':6 'way':10
                                    'search_combo'  '00dutch':20 '00mid':17 'all':8B,14C,24 'allstars':16C 'back':2A 'europe':19 'funk':27 'home':3A 'jr':4B,5B,10C,11C,21 'north':18 'or':28 'soul':29 'stars':9B,15C,25 'the':7B,13C,23 'walker':6B,12C,22 'way':1A,26
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'motown', 'funk', '60s', '7soul']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357774.2553735  (2021-08-07 19:36:14)
                             'size'  7659530