======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '176'
                                          'artist'  'Steve Vai'
                                     'text_people'  ''
                                         'release'  'Passion and Warfare'
                                           'title'  'Answers'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'guitar', 'guitar virtuoso', 'instrumental rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-gr;set-pl-progspace'
                                             'bpm'  '143.213'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Passion and Warfare'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr', 'set-pl-progspace']
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Answers'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Steve Vai'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental', 'guitar', 'guitar virtuoso', 'instrumental rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.56 dB'
'TXXX:replaygain_track_peak'                        '0.487015'

========================== row from database ==========================
                                              'id'  1288476
                                            'path'  /data/Music/Bulk/00poprockelectronic/Steve Vai/Steve Vai - Passion and Warfare/04 - Answers.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  176
                                           'genre'  rock-gr;set-pl-progspace
                                        'filesize'  2826713
                                           'mtime'  1636903116
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04 rock gr;set pl progspace
                                      'tag_artist'  Steve Vai
                                     'tag_release'  Passion and Warfare
                                       'tag_title'  Answers
                                             'bpm'  143.213
                                    'search_title'  'answers':1
                                   'search_artist'  'steve':1 'vai':2
                                  'search_release'  'and':2 'passion':1 'warfare':3
                                     'search_rest'  '00poprockelectronic':1 'gr':3,5 'pl':7 'progspace':8 'rock':2 'set':4,6
                                    'search_combo'  '00poprockelectronic':7 'and':5C 'answers':1A 'gr':9,11 'passion':4C 'pl':13 'progspace':14 'rock':8 'set':10,12 'steve':2B 'vai':3B 'warfare':6C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'guitar', 'guitar virtuoso', 'instrumental rock', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636903116.3390734  (2021-11-14 16:18:36)
                             'size'  2826713