======================== unified (from filesystem) ========================
                                         'bitrate'  '165.62'
                                        'duration'  '249'
                                          'artist'  'Iain Mackenzie'
                                     'text_people'  ''
                                         'release'  'Electro Swing III'
                                           'title'  'All Aboard'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['jazz', 'swing', 'ambient', 'electro-jazz']"
                                     'discogstags'  "['jazz', 'future jazz', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '20'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-electroswing'
                                             'bpm'  '130.063'
                                             'key'  '3A'
                                        'acoustid'  '7fb3d8c5-71fa-42cb-be39-6834b32fb849'
rest: ''

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

'APIC:CD Front Cover'                               type PictureType.COVER_FRONT (Cover (front)) b'CD Front Cover'
                                     
'COMM:ID3v1 Comment:XXX'                            'RobSet |ber alles!'
'MCDI' (Music CD identifier)                        MCDI(data=b"\x00\xaa\x01\x14\x00\x10\x01\x00\x00\x00\x00\x00\x00\x10\x02\x00\x00\x00G#\x00\x10\x03\x00\x00\x00\x83\xbc\x00\x10\x04\x00\x00\x00\xc6~\x00\x10\x05\x00\x00\x01\x0e\xca\x00\x10\x06\x00\x00\x01W\xc6\x00\x10\x07\x00\x00\x01\x99\xf5\x00\x10\x08\x00\x00\x01\xdb\x81\x00\x10\t\x00\x00\x02$\x82\x00\x10\n\x00\x00\x02rr\x00\x10\x0b\x00\x00\x02\xaf\xda\x00\x10\x0c\x00\x00\x02\xeb\x95\x00\x10\r\x00\x00\x03'\x88\x00\x10\x0e\x00\x00\x03rR\x00\x10\x0f\x00\x00\x03\xc2\x86\x00\x10\x10\x00\x00\x03\xfbF\x00\x10\x11\x00\x00\x04+\x08\x00\x10\x12\x00\x00\x04e\xd2\x00\x10\x13\x00\x00\x04\x9a\xaf\x00\x10\x14\x00\x00\x04\xe5\x91\x00\x10\xaa\x00\x00\x05\x1ag\xff\xff")
'TALB' (Album/Movie/Show title)                     'Electro Swing III'
'TBPM' (BPM (beats per minute))                     '130.063'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-electroswing'
'TDEN' (Encoding time)                              '2014-08-11 14:58'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010-11-01'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'All Aboard'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '249186'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Iain Mackenzie'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Wagram Music'
'TRCK' (Track number/Position in set)               '8/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Mackenzie, Iain'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME.EXE -h -v -b 128'
'TXXX:ASIN'                                         'B0043BNYLY'
'TXXX:Acoustid Id'                                  '7fb3d8c5-71fa-42cb-be39-6834b32fb849'
'TXXX:BARCODE'                                      '3596972308529'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '80ddcd2d-0f16-487a-8c70-b95125b99bca'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'ea8c530b-6ed6-4ebd-a9a3-474368d0bcca'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['jazz', 'future jazz', 'easy listening']
'TXXX:lastfmtags'                                   ['jazz', 'swing', 'ambient', 'electro-jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.60 dB'
'TXXX:replaygain_track_peak'                        '0.450234'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'1d35a4e7-a8e6-4b86-b464-09533c11ee7a')

========================== row from database ==========================
                                              'id'  1365298
                                            'path'  /data/Music/Bulk/00poprockelectronic/electro swing iii/08. All Aboard - Iain Mackenzie.mp3
                                         'working'  None
                                         'bitrate'  165
                                    'duration_sec'  249
                                           'genre'  electronic-electroswing
                                        'filesize'  5161782
                                           'mtime'  1622756976
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electro swing iii 08. electronic electroswing
                                      'tag_artist'  Iain Mackenzie
                                     'tag_release'  Electro Swing III
                                       'tag_title'  All Aboard
                                             'bpm'  130.063
                                    'search_title'  'aboard':2 'all':1
                                   'search_artist'  'iain':1 'mackenzie':2
                                  'search_release'  'electro':1 'iii':3 'swing':2
                                     'search_rest'  '00poprockelectronic':1 '08':5,6 'electro':2 'electronic':7 'electroswing':8 'iii':4 'swing':3
                                    'search_combo'  '00poprockelectronic':8 '08':12,13 'aboard':2A 'all':1A 'electro':5C,9 'electronic':14 'electroswing':15 'iain':3B 'iii':7C,11 'mackenzie':4B 'swing':6C,10
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'swing', 'ambient', 'electro-jazz']
                                        'tag_date'  2010
                                     'discogstags'  ['jazz', 'future jazz', 'easy listening']

============================== file details ==============================
                                           'mtime'  1622756976.0100129  (2021-06-03 23:49:36)
                             'size'  5161782