======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '243'
                                          'artist'  'Pet Shop Boys'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Always on My Mind (demo version)'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'electronic', 'pop', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '14'
                                            'date'  '2018'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '125'
                                             'key'  '9B'
                                        'acoustid'  '723e2aa0-95f1-4eec-a7ec-65d2a2201d67'
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDOR' (Original release time)                      '1987'
'TDRC' (Recording time)                             '2018-03-02'
'TIT2' (Title/songname/content description)         'Always on My Mind (demo version)'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Pet Shop Boys'
'TPE2' (Band/orchestra/accompaniment)               'Pet Shop Boys'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Parlophone'
'TRCK' (Track number/Position in set)               '9/14'
'TSO2'                                              'Pet Shop Boys'
'TSOP' (Performer sort order)                       'Pet Shop Boys'
'TSRC' (ISRC (international standard recording code))  'GBAYE0100069'
'TSST' (Set subtitle)                               'Further Listening 1987-1988'
'TXXX:Acoustid Id'                                  '723e2aa0-95f1-4eec-a7ec-65d2a2201d67'
'TXXX:Artists'                                      'Pet Shop Boys'
'TXXX:BARCODE'                                      '0190295826222'
'TXXX:CATALOGNUMBER'                                '0190295826222'
'TXXX:MusicBrainz Album Artist Id'                  'be540c02-7898-4b79-9acc-c8122c7d9e83'
'TXXX:MusicBrainz Album Id'                         'c2024533-b896-4fb3-892a-69efa9abedca'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'be540c02-7898-4b79-9acc-c8122c7d9e83'
'TXXX:MusicBrainz Release Group Id'                 '6de9a233-13dd-30b5-ad30-61c5814774c5'
'TXXX:MusicBrainz Release Track Id'                 '67324f10-3cef-4448-b534-f42c78cd4254'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'electronic', 'pop', 'synthpop']
'TXXX:originalyear'                                 '1987'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.462526'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'1775c5f1-030f-4f03-a751-00da01f3d7c1')

========================== row from database ==========================
                                              'id'  1420660
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Pet Shop Boys/MBZ;#Pet Shop Boys;#Further Listening 1987 - 1988 (Actually disc 2);#09;#Always on My Mind (Demo version).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  243
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  5859146
                                           'mtime'  1620610069
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo MBZ;#Pet Boys;#Further Listening 1987 1988 (Actually disc 2);#09;#Always (Demo electronic we disco or italo
                                      'tag_artist'  Pet Shop Boys
                                     'tag_release'  None
                                       'tag_title'  Always on My Mind (demo version)
                                             'bpm'  125.0
                                    'search_title'  'always':1 'demo':5,6 'mind':4 'my':3 'on':2 'version':7,8
                                   'search_artist'  'boys':3 'pet':1 'shop':2
                                  'search_release'  
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '09':21,24 '1987':15 '1988':16 '2':20,23 'actually':17,18 'always':22,25 'boys':10,12 'demo':26,27 'disc':19 'disco':3 'electronic':28 'further':11,13 'italo':5 'listening':14 'mbz':6,8 'or':30 'pet':7,9 'waves':2 'we':29
                                    'search_combo'  '00disco':15 '00poprockelectronic':12 '09':32,35 '1987':26 '1988':27 '2':31,34 'actually':28,29 'always':1A,33,36 'boys':11B,21,23 'demo':5A,6A,37,38 'disc':30 'disco':14 'electronic':39 'further':22,24 'italo':16 'listening':25 'mbz':17,19 'mind':4A 'my':3A 'on':2A 'or':41 'pet':9B,18,20 'shop':10B 'version':7A,8A 'waves':13 'we':40
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'Q-HAP-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'electronic', 'pop', 'synthpop']
                                        'tag_date'  2018
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620610069.1784847  (2021-05-10 03:27:49)
                             'size'  5859146