======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '16'
                                          'artist'  'FM3'
                                     'text_people'  ''
                                         'release'  'Buddha Machine'
                                           'title'  'Zheng'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'Q-PLAY-2', 'q-bass-1', 'q-busy-1', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['minimalism', 'drone', 'china', 'minimal', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '9'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'set-pl-buddhamachine'
                                             'bpm'  '142.7'
                                             'key'  '9A'
                                        'acoustid'  '2c33b4be-e41b-4dc3-8ae3-91fdf4da5dbc'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Buddha Machine'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCMP'                                              '0'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-buddhamachine'
'TDOR' (Original release time)                      '0000'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Zheng'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'FM3'
'TPE2' (Band/orchestra/accompaniment)               'FM3'
'TPOS' (Part of a set)                              '0/1'
'TPUB' (Publisher)                                  'Not On Label (FM3 Self-released)'
'TRCK' (Track number/Position in set)               '2/9'
'TXXX:Acoustid Fingerprint'                         'AQAAbEuSZUpkBjeKK8fBbzm-I0_eBE1t6AlRWj7-4B4YVsnRKDJIEdcclE9BXUHf4x9-1Db8BSVe9Md5fOPR4uiFD8c56LQArztaXNOhwx9k4qi_I_2Eb0T5Ylfxo-kLNJeOJ8KxS8dzonkRQteRh2KGX_jQ_ogmhqmgufiCR-gPLQyv4Dlypmjq7OhK_MJIo4-PWllxXAbLvOAeonlooRTx8AjEh8aFR0Wue2jwSwGePiiZPcOP7kKyjDzyLJiOJpIu49_xD41z9BqOP5QQdswIBAEFgmggEDGOAiUEEFA4I4wwjAjnkEFEQSI4AQc4RADxAEAphEEQIKGQIoAYqgRRSghGgCIjMYAIQEQAIYgBDDKlwAEAKKSMIwA'
'TXXX:Acoustid Id'                                  '2c33b4be-e41b-4dc3-8ae3-91fdf4da5dbc'
'TXXX:MusicBrainz Album Artist Id'                  '143217'
'TXXX:MusicBrainz Album Id'                         '583314'
'TXXX:MusicBrainz Album Release Country'            'China'
'TXXX:MusicBrainz Artist Id'                        '143217'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimalism', 'drone', 'china', 'minimal', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.33 dB'
'TXXX:replaygain_track_peak'                        '0.527642'
'USLT::\x00\x00\x00'                                ''

========================== row from database ==========================
                                              'id'  940968
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Buddha Machine/FM3BuddhaMachine/Buddha Machine_/02 - Zheng.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  16
                                           'genre'  set-pl-buddhamachine
                                        'filesize'  4735751
                                           'mtime'  1637785095
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FM3BuddhaMachine Machine_ 02 set pl buddhamachine
                                      'tag_artist'  FM3
                                     'tag_release'  Buddha Machine
                                       'tag_title'  Zheng
                                             'bpm'  142.7
                                    'search_title'  'zheng':1
                                   'search_artist'  'fm3':1
                                  'search_release'  'buddha':1 'machine':2
                                     'search_rest'  'buddhamachine':5 'fm3buddha':6 'fm3buddhamachine':1 'machine':2,7 'pl':4 'set':3
                                    'search_combo'  'buddha':3C 'buddhamachine':9 'fm3':2B 'fm3buddha':10 'fm3buddhamachine':5 'machine':4C,6,11 'pl':8 'set':7 'zheng':1A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minimalism', 'drone', 'china', 'minimal', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1637785095.2668252  (2021-11-24 21:18:15)
                             'size'  4735751