======================== unified (from filesystem) ========================
                                         'bitrate'  '272.083'
                                        'duration'  '284'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'Firestarter'
                                           'title'  'Firestarter (instrumental)'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                                     'discogstags'  "['electronic', 'breakbeat', 'ebm', 'big beat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '4'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '141'
                                             'key'  '6B'
                                        'acoustid'  '5948e1f7-32af-42cb-9891-bdd32c94ad20'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Firestarter'
'TBPM' (BPM (beats per minute))                     '141'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996-04-09'
'TIT2' (Title/songname/content description)         'Firestarter (instrumental)'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TPE2' (Band/orchestra/accompaniment)               'The Prodigy'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'XL Recordings/Mute Corporation'
'TRCK' (Track number/Position in set)               '3/4'
'TSO2'                                              'Prodigy, The'
'TSOP' (Performer sort order)                       'Prodigy, The'
'TSRC' (ISRC (international standard recording code))  'GBBKS9700108'
'TXXX:ASIN'                                         'B000008R44'
'TXXX:Acoustid Id'                                  '5948e1f7-32af-42cb-9891-bdd32c94ad20'
'TXXX:Artists'                                      'The Prodigy'
'TXXX:BARCODE'                                      '724596800126'
'TXXX:CATALOGNUMBER'                                '8001-2/Mute 8001-2'
'TXXX:MusicBrainz Album Artist Id'                  '4a4ee089-93b1-4470-af9a-6ff575d32704'
'TXXX:MusicBrainz Album Id'                         '8d1258ce-5574-4b6d-97e2-a1dc4186617d'
'TXXX:MusicBrainz Album Release Country'            'CA'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '4a4ee089-93b1-4470-af9a-6ff575d32704'
'TXXX:MusicBrainz Release Group Id'                 '7eb4a100-9812-39ea-91e9-b364527e7c5e'
'TXXX:MusicBrainz Release Track Id'                 '45f676fd-ebe6-48c8-81b7-3b8f33456ae7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'breakbeat', 'ebm', 'big beat']
'TXXX:lastfmtags'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:mood'                                         'Not party/Relaxed/Not acoustic/Not sad/Not aggressive/Electronic/Happy'
'TXXX:originalyear'                                 '1996'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.30 dB'
'TXXX:replaygain_track_peak'                        '0.301218'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'82e46ba4-b677-480b-baca-7fe8270e34bf')

========================== row from database ==========================
                                              'id'  1405763
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Prodigy/Firestarter (1996)/MBZ;#The Prodigy;#Firestarter;#03;#Firestarter (instrumental).mp3
                                         'working'  None
                                         'bitrate'  272
                                    'duration_sec'  284
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  9702942
                                           'mtime'  1621695868
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat (1996) MBZ;#The Prodigy;#Firestarter;#03;#Firestarter electronic generic or radio bigbeat
                                      'tag_artist'  The Prodigy
                                     'tag_release'  Firestarter
                                       'tag_title'  Firestarter (instrumental)
                                             'bpm'  141.0
                                    'search_title'  'firestarter':1 'instrumental':2,3
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'firestarter':1
                                     'search_rest'  '00poprockelectronic':1 '03':13,17 '1996':5,6 'bigbeat':22 'dance':3 'electronic':19 'firestarter':12,14,16,18 'generic':2 'mbz':7,9 'or':20 'prodigy':11,15 'radio':21 'the':8,10 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':7 '03':19,23 '1996':11,12 'bigbeat':28 'dance':9 'electronic':25 'firestarter':1A,6C,18,20,22,24 'generic':8 'instrumental':2A,3A 'mbz':13,15 'or':26 'prodigy':5B,17,21 'radio':27 'the':4B,14,16 'trapbeat':10
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  1996
                                     'discogstags'  ['electronic', 'breakbeat', 'ebm', 'big beat']

============================== file details ==============================
                                           'mtime'  1621695867.6317441  (2021-05-22 17:04:27)
                             'size'  9702942