======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '165'
                                          'artist'  'Unknown'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "A window I can't see through"
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'Q-JZFKS-1', 'Q-OLDST-1', 'q-drums-1', 'q-other-1', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['80ies', 'classic rock', 'leapsandbounds cdcollection', 'comedy', '90s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '98.5'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '98.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         "A window I can't see through"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Unknown'
'TXXX:MusicMagic Data'                              'AgEBWp10gvCxpK9WhCK6EkUUgAGF6YSFCQGmN06/hnPGvoABjrgJRayCmSezm4ABghaAAchs934WCuBhgAHP8Q5/5n2AAbZ/gAKAAYRcpGSaxoJj/Zgo7IdIhO6GBxDVpnA1x4PQ3HuKP4kIG+qyg4wWwXSQu4HQgAHZTtwKCT2e6ICqu3ANOebooNW5xoUEgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '0000b64000007307cf0c2724444129004001460100013d48210574cf3f9cff3fc7c80f6efe0cfcf7cfdc2f3d4ef6f3b33bc0ff7efef46ff5fbf87fc725ddccbdbfccbf3ff3cd0dcff7fcff3d1f486f4cbcfcfccab0f9faff5c257fdeccffffffefdf33effe73ec73fe8b53fdfbffefbbfcc9f2d92d4cd06f532e38f2bdfde38f87be3a3bdb7f0f0efc4fe80b7f8eb8cfffaff794af26607ff1cdf3ddfbfc5376f1c1c373ffec8d3eff40588c3dc6443adbfcefff70c86bf1b0c03c327f1c8ffff4ae3ee0fe3dd7436c3ae4df7eb6fbb07a1038fdfac8f4c03f9e46feef1fc525d97fdd7fccf23e9f32c7eefbf7483bfff7f48fbc4568fde37fcd3f3f7fa037233eccff207f45bd3dbc52feff7fb0ffddfcfcfffc9bc8bf4ebcb0ccb2cc38ccb43ffcabfcc1f28bfbfffc3bbbfcfddcfbbd733cf3ff70fffe4cf47ccf3f3cedf0ce78ff5fbfff3ff31b5fbf0cc02ffeefffddf0fd3eee1cfedefefcc86fdf33462fe8cefbceefa441294e84e3b1e813553a6a9e4965b1eb2c8294e4b249ecb13a137ac920b134d3567e3895d4ecb20813e53b27a934e94d3b2c8214ec4e5aa5aa5813953a60a534c0'
'TXXX:lastfmtags'                                   ['80ies', 'classic rock', 'leapsandbounds cdcollection', 'comedy', '90s']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.573550'

========================== row from database ==========================
                                              'id'  1495391
                                            'path'  /data/Music/Other/Pa/Country/There's a window I can't see through.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  165
                                           'genre'  prerock-country
                                        'filesize'  3320107
                                           'mtime'  1621094198
                                   'redo_metaread'  0
                                        'rest_str'   Pa Country There's prerock country
                                      'tag_artist'  Unknown
                                     'tag_release'  None
                                       'tag_title'  A window I can't see through
                                             'bpm'  98.5
                                    'search_title'  'a':1 'can':4 'cant':6 'i':3 'see':7 't':5 'through':8 'window':2
                                   'search_artist'  'unknown':1
                                  'search_release'  
                                     'search_rest'  'country':2 'pa':1 'prerock':6 's':4 'there':3 'theres':5
                                    'search_combo'  'a':1A 'can':4A 'cant':6A 'country':11 'i':3A 'pa':10 'prerock':15 's':13 'see':7A 't':5A 'there':12 'theres':14 'through':8A 'unknown':9B 'window':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-1', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['80ies', 'classic rock', 'leapsandbounds cdcollection', 'comedy', '90s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094197.516631  (2021-05-15 17:56:37)
                             'size'  3320107