======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '340'
                                          'artist'  'Saåad / Stray Ghost / Heinali / Koen Daigaku / Dictionary of Ghosts'
                                     'text_people'  ''
                                         'release'  'For Small Creatures Such as We'
                                           'title'  'Back Pain / Pain Back'
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '4'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '121.4'
                                             'key'  '1A'
                                        'acoustid'  '4560ad81-3b2f-48ef-855a-8598c19a3dad'
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'For Small Creatures Such as We'
'TBPM' (BPM (beats per minute))                     '121.4'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TDOR' (Original release time)                      '2012'
'TDRC' (Recording time)                             '2012-01-01'
'TIT2' (Title/songname/content description)         'Back Pain / Pain Back'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 '8cm CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Saåad'
'TPE2' (Band/orchestra/accompaniment)               'Saåad / Stray Ghost / Heinali / Koen Daigaku / Dictionary of Ghosts'
'TPOS' (Part of a set)                              '1/5'
'TPUB' (Publisher)                                  'Heat Death Records'
'TRCK' (Track number/Position in set)               '4/4'
'TSO2'                                              'Saåad / Stray Ghost / Heinali / Koen Daigaku / Dictionary of Ghosts'
'TSOP' (Performer sort order)                       'Saåad'
'TXXX:Acoustid Id'                                  '4560ad81-3b2f-48ef-855a-8598c19a3dad'
'TXXX:CATALOGNUMBER'                                'HEATBOX1'
'TXXX:MusicBrainz Album Artist Id'                  '0ac114bc-69c8-4ff1-b54b-de17f3dd343d/7597108e-0139-4f85-8b67-d3e0f8e26a24/cafc7b39-3dd9-41da-82cf-a1d01d481ede/fd049744-48a0-4f91-a8a7-01b313049bd3/61e36ebd-dbfd-4453-b249-655c1a17ac22'
'TXXX:MusicBrainz Album Id'                         '48455b92-4cbf-44bf-9a06-467731985ad3'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '0ac114bc-69c8-4ff1-b54b-de17f3dd343d'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.00 dB'
'TXXX:replaygain_track_peak'                        '0.422712'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd065f8fe-b9e4-4b38-b563-e6b293b0ca82')

========================== row from database ==========================
                                              'id'  1367867
                                            'path'  /data/Music/Bulk/00poprockelectronic/saaad - raincoats ep (2011)/saĺad - raincoats ep - 04 back pain - pain back.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  340
                                           'genre'  eid-unsorted
                                        'filesize'  14030172
                                           'mtime'  1620521521
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic saaad raincoats ep (2011) saĺad raincoats ep 04 back pain pain back eid unsorted
                                      'tag_artist'  Saåad / Stray Ghost / Heinali / Koen Daigaku / Dictionary of Ghosts
                                     'tag_release'  For Small Creatures Such as We
                                       'tag_title'  Back Pain / Pain Back
                                             'bpm'  121.4
                                    'search_title'  'back':1 'pain':2
                                   'search_artist'  'daigaku':7 'dictionary':8 'ghost':4 'ghosts':10 'heinali':5 'koen':6 'of':9 'saaad':1,2 'stray':3
                                  'search_release'  'as':5 'creatures':3 'for':1 'small':2 'such':4 'we':6
                                     'search_rest'  '00poprockelectronic':1 '2011':5,6 'back':9 'eid':11 'ep':4 'pain':10 'raincoats':3 'saaad':2 'salad':7,8 'unsorted':12
                                    'search_combo'  '00poprockelectronic':19 '2011':23,24 'as':17C 'back':1A,27 'creatures':15C 'daigaku':9B 'dictionary':10B 'eid':29 'ep':22 'for':13C 'ghost':6B 'ghosts':12B 'heinali':7B 'koen':8B 'of':11B 'pain':2A,28 'raincoats':21 'saaad':3B,4B,20 'salad':25,26 'small':14C 'stray':5B 'such':16C 'unsorted':30 'we':18C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  []
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620521520.646242  (2021-05-09 02:52:00)
                             'size'  14030172