======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '248'
                                          'artist'  'Jimi Hendrix'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Stepping Stone'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;rock-pop-early-blues;rock-cppex'
                                             'bpm'  '144.541'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.541'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'rock-pop-early-blues', 'rock-cppex']
'TIT2' (Title/songname/content description)         'Stepping Stone'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimi Hendrix'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.41 dB'
'TXXX:replaygain_track_peak'                        '0.399572'

========================== row from database ==========================
                                              'id'  1486164
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Jimi Hendrix/Jimi Hendrix_/War Heroes/Jimi Hendrix - 06 - Stepping Stone.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  248
                                           'genre'  rock-cppex-psychedelic;rock-pop-early-blues;rock-cppex
                                        'filesize'  5963776
                                           'mtime'  1635960263
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Hendrix_ War Heroes 06 rock cppex psychedelic;rock pop early blues;rock cppex
                                      'tag_artist'  Jimi Hendrix
                                     'tag_release'  None
                                       'tag_title'  Stepping Stone
                                             'bpm'  144.541
                                    'search_title'  'stepping':1 'stone':2
                                   'search_artist'  'hendrix':2 'jimi':1
                                  'search_release'  
                                     'search_rest'  'blues':13,15 'classicprogpsy':1 'cppex':6 'early':12 'hendrix':2 'heroes':4 'pop':11 'psychedelic':7,9 'rock':5,8,10,14,16 'war':3
                                    'search_combo'  'blues':17,19 'classicprogpsy':5 'cppex':10 'early':16 'hendrix':4B,6 'heroes':8 'jimi':3B 'pop':15 'psychedelic':11,13 'rock':9,12,14,18,20 'stepping':1A 'stone':2A 'war':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1635960263.1944277  (2021-11-03 18:24:23)
                             'size'  5963776