======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '200'
                                          'artist'  'Ge Gan Ru'
                                     'text_people'  ''
                                         'release'  'Tellus #19: New Music China'
                                           'title'  '"Yi Feng" ("Ancient Wind") for solo cello (excerpt)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '145.7'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TBPM' (BPM (beats per minute))                     '145.7'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1988'
'TIT2' (Title/songname/content description)         '"Yi Feng" ("Ancient Wind") for solo cello (excerpt)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ge Gan Ru'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:q-bass'                                       '1'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.63 dB'
'TXXX:replaygain_track_peak'                        '0.648750'

========================== row from database ==========================
                                              'id'  302203
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1988 - Tellus #19 - New Music China/14 - Ge Gan Ru - Yi Feng (Ancient Wind) for solo cello (excerpt).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  200
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  4844179
                                           'mtime'  1636915927
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                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1988 14 (Ancient Wind) electronic experimental oddness
                                      'tag_artist'  Ge Gan Ru
                                     'tag_release'  Tellus #19: New Music China
                                       'tag_title'  "Yi Feng" ("Ancient Wind") for solo cello (excerpt)
                                             'bpm'  145.7
                                    'search_title'  'ancient':3,4 'cello':9 'excerpt':10,11 'feng':2 'for':7 'solo':8 'wind':5,6 'yi':1
                                   'search_artist'  'gan':2 'ge':1 'ru':3
                                  'search_release'  '19':2,3 'china':6 'music':5 'new':4 'tellus':1
                                     'search_rest'  '1988':4 'ancient':5,6 'audio':1 'cassette':2 'electronic':9 'experimental':10 'magazine':3 'oddness':11 'wind':7,8
                                    'search_combo'  '19':16C,17C '1988':24 'ancient':3A,4A,25,26 'audio':21 'cassette':22 'cello':9A 'china':20C 'electronic':29 'excerpt':10A,11A 'experimental':30 'feng':2A 'for':7A 'gan':13B 'ge':12B 'magazine':23 'music':19C 'new':18C 'oddness':31 'ru':14B 'solo':8A 'tellus':15C 'wind':5A,6A,27,28 'yi':1A
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1988
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636915926.926517  (2021-11-14 19:52:06)
                             'size'  4844179