======================== unified (from filesystem) ========================
                                         'bitrate'  '251.039'
                                        'duration'  '147'
                                          'artist'  'Takeshi Terauchi'
                                     'text_people'  'Beethoven'
                                         'release'  'The Complete Collection'
                                           'title'  "Fate (Theme From Beethoven's 5th Symphony in C minor)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', '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'  "['surf', 'eleki', 'japanese', 'surf rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '87.824'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Complete Collection'
'TBPM' (BPM (beats per minute))                     '87.824'
'TCOM' (Composer)                                   'Beethoven'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TIT2' (Title/songname/content description)         "Fate (Theme From Beethoven's 5th Symphony in C minor)"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Takeshi Terauchi'
'TPE2' (Band/orchestra/accompaniment)               'Takeshi Terauchi'
'TRCK' (Track number/Position in set)               '01'
'TXXX:DATE'                                         '1998'
'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'                                   ['surf', 'eleki', 'japanese', 'surf rock']
'TXXX:q-bass'                                       '4'
'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'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.493667'

========================== row from database ==========================
                                              'id'  1496114
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/The Blue Jeans - Complete Collection/01. Fate (Theme From Beethoven_s 5th Symphony in C minor).mp3
                                         'working'  None
                                         'bitrate'  251
                                    'duration_sec'  147
                                           'genre'  rock-pop-surf
                                        'filesize'  4619033
                                           'mtime'  1620737149
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Blue Jeans 01. Beethoven_s rock pop surf
                                      'tag_artist'  Takeshi Terauchi
                                     'tag_release'  The Complete Collection
                                       'tag_title'  Fate (Theme From Beethoven's 5th Symphony in C minor)
                                             'bpm'  87.824
                                    'search_title'  '5th':8 'beethoven':5 'beethovens':7 'c':11 'fate':1 'from':4 'in':10 'minor':12,13 's':6 'symphony':9 'theme':2,3
                                   'search_artist'  'takeshi':1 'terauchi':2
                                  'search_release'  'collection':3 'complete':2 'the':1
                                     'search_rest'  '01':7,8 'beethoven':9 'blue':5 'garage':2 'jeans':6 'pop':12 'punk':1 'rock':11 's':10 'stoner':4 'surf':3
                                    'search_combo'  '01':25,26 '5th':8A 'beethoven':5A,27 'beethovens':7A 'blue':23 'c':11A 'collection':18C 'complete':17C 'fate':1A 'from':4A 'garage':20 'in':10A 'jeans':24 'minor':12A,13A 'pop':30 'punk':19 'rock':29 's':6A,28 'stoner':22 'surf':21 'symphony':9A 'takeshi':14B 'terauchi':15B 'the':16C 'theme':2A,3A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           '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-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'eleki', 'japanese', 'surf rock']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737148.950863  (2021-05-11 14:45:48)
                             'size'  4619033