======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '205'
                                          'artist'  'Jimi Hendrix'
                                     'text_people'  ''
                                         'release'  'The Ultimate Experience'
                                           'title'  'Hey Joe'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']"
                                     'discogstags'  "['rock', 'psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;rock-pop-early-blues;rock-cppex'
                                             'bpm'  '110.906'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Ultimate Experience'
'TBPM' (BPM (beats per minute))                     '110.906'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'rock-pop-early-blues', 'rock-cppex']
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Hey Joe'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimi Hendrix'
'TRCK' (Track number/Position in set)               '3'
'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:discogstags'                                  ['rock', 'psychedelic rock']
'TXXX:lastfmtags'                                   ['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']
'TXXX:original release date'                        ['1993', '1993']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.600457'

========================== row from database ==========================
                                              'id'  1412937
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Jimi Hendrix/MBZ;#Jimi Hendrix;#The Ultimate Experience;#03;#Hey Joe.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  205
                                           'genre'  rock-cppex-psychedelic;rock-pop-early-blues;rock-cppex
                                        'filesize'  8222213
                                           'mtime'  1635960274
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy MBZ;#Jimi Hendrix;#The Experience;#03;#Hey rock cppex psychedelic;rock pop early blues;rock cppex
                                      'tag_artist'  Jimi Hendrix
                                     'tag_release'  The Ultimate Experience
                                       'tag_title'  Hey Joe
                                             'bpm'  110.906
                                    'search_title'  'hey':1 'joe':2
                                   'search_artist'  'hendrix':2 'jimi':1
                                  'search_release'  'experience':3 'the':1 'ultimate':2
                                     'search_rest'  '03':11,14 'blues':24,26 'classicprogpsy':1 'cppex':17 'early':23 'experience':10,13 'hendrix':6,8 'hey':12,15 'jimi':3,5 'mbz':2,4 'pop':22 'psychedelic':18,20 'rock':16,19,21,25,27 'the':7,9
                                    'search_combo'  '03':18,21 'blues':31,33 'classicprogpsy':8 'cppex':24 'early':30 'experience':7C,17,20 'hendrix':4B,13,15 'hey':1A,19,22 'jimi':3B,10,12 'joe':2A 'mbz':9,11 'pop':29 'psychedelic':25,27 'rock':23,26,28,32,34 'the':5C,14,16 'ultimate':6C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1993
                                     'discogstags'  ['rock', 'psychedelic rock']

============================== file details ==============================
                                           'mtime'  1635960274.3151004  (2021-11-03 18:24:34)
                             'size'  8222213