======================== unified (from filesystem) ========================
                                         'bitrate'  '163.202'
                                        'duration'  '587'
                                          'artist'  'Claude Debussy'
                                     'text_people'  ''
                                         'release'  'Berliner Philharmoniker - Herbert Von Karajan'
                                           'title'  "Prélude à l'après-midi d'une faune - Très modéré"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['impressionist', 'composers', 'piano', 'french', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '145.2'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:Comment:XXX'                                  'Berliner Philharmoniker'
'MCDI' (Music CD identifier)                        MCDI(data=b'\x00:\x01\x06\x00\x10\x01\x00\x00\x00\x00!\x00\x10\x02\x00\x00\x01\x1e\\\x00\x10\x03\x00\x00\x01\xb5\xd3\x00\x10\x04\x00\x00\x02#\x1a\x00\x10\x05\x00\x00\x02\xaf\xba\x00\x10\x06\x00\x00\x03\xbe#\x00\x10\xaa\x00\x00\x04k\x93')
'TALB' (Album/Movie/Show title)                     'Berliner Philharmoniker - Herbert Von Karajan'
'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRL' (Release time)                               '1966'
'TENC' (Encoded by)                                 'Greg'
'TIT2' (Title/songname/content description)         "Prélude à l'après-midi d'une faune - Très modéré"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Claude Debussy'
'TRCK' (Track number/Position in set)               '6'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['impressionist', 'composers', 'piano', 'french', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.94 dB'
'TXXX:replaygain_track_peak'                        '0.846530'

========================== row from database ==========================
                                              'id'  1500655
                                            'path'  /data/Music/Bulk/00instruments-classical/Debussy/Debussy C. - 06 - Pr_lude _ l_apr_s-midi d_une faune - Tr_s mod_r_.mp3
                                         'working'  None
                                         'bitrate'  163
                                    'duration_sec'  587
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  11984326
                                           'mtime'  1620561531
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical C. 06 Pr_lude _ l_apr_s d_une Tr_s mod_r_ prerock classical or classical instruments
                                      'tag_artist'  Claude Debussy
                                     'tag_release'  Berliner Philharmoniker - Herbert Von Karajan
                                       'tag_title'  Prélude à l'après-midi d'une faune - Très modéré
                                             'bpm'  145.2
                                    'search_title'  'a':3,4 'apres':6,10 'd':13 'dune':15 'faune':16 'l':5,9 'lapresmidi':8,12 'midi':7,11 'modere':19,20 'prelude':1,2 'tres':17,18 'une':14
                                   'search_artist'  'claude':1 'debussy':2
                                  'search_release'  'berliner':1 'herbert':3 'karajan':5 'philharmoniker':2 'von':4
                                     'search_rest'  '00instruments':1 'apr':8 'c':3,4 'classical':2 'd':10 'instruments':18 'l':7 'lude':6 'mod':14 'or':17 'pr':5 'prerock':16 'r':15 's':9,13 'tr':12 'une':11
                                    'search_combo'  '00instruments':28 'a':3A,4A 'apr':35 'apres':6A,10A 'berliner':23C 'c':30,31 'classical':29 'claude':21B 'd':13A,37 'debussy':22B 'dune':15A 'faune':16A 'herbert':25C 'instruments':45 'karajan':27C 'l':5A,9A,34 'lapresmidi':8A,12A 'lude':33 'midi':7A,11A 'mod':41 'modere':19A,20A 'or':44 'philharmoniker':24C 'pr':32 'prelude':1A,2A 'prerock':43 'r':42 's':36,40 'tr':39 'tres':17A,18A 'une':14A,38 'von':26C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['impressionist', 'composers', 'piano', 'french', 'classical']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561531.183996  (2021-05-09 13:58:51)
                             'size'  11984326