======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '1015'
                                          'artist'  'Vivaldi'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Venetiaans concert'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '143.4'
                                             'key'  'A#m'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Venetiaans concert'
'TKEY' (Initial key)                                'A#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Vivaldi'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBWotKgdDMOrh+gTbI/zJSgAGA9YACLdKm9PXLgAHcTYABgAEOpq6jgAGwoIABjECAAaR4FAye9IABgAHGLCpau3mAAZO2gAKAAZ9cumjHtYYM7dA3SJ3QgfaAFyJmn8YMNYAw1MaL74AtFqmv0ICixrSC1odlgAG0dwdBu7eLHoAQu4wl3tlHp+CepIAZgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'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/'                       '0000978c0100f706c4140600001100d410024e495041ac337bfc0d3b3ffa4d373ff604ad7fae0df3fbf92cb737f609dcdf894208e2fb5333bf16a732fe0aab33b36ec333ff054332b22aef3bf86d5f3fff6e2cb77fda0df3cf83010b3ffe480a7fdd52cffffc4771f50f141dcf8602cf33fc78a337ff3fd3f9ff2e4810cf833d73fea9397c3e038c8ffae2c53841df4f3cfb6cd74a1c3d3833dddfc65d8d4fb87dc80ff79f025593fcc66cb3dfc389b7fdf395e7ade23cfbf7ff78e5f33db90cd33c7c67df4a3ff2338f3c68abffecffbbefacf7b7c49e35a7f0aec5cfc1ccf0ffec8d3243b4dd1de3d4df3fe6fcaca38fccaf1fdbcccfdfa36c47d33ffccef0eff57bf5d0cff77ffbcf92cd03fc43f30bfcc3f7ff7c01e58b7d8f707de1af74df9f4fb63fc08fdfffe74fbffff5f33ff3c49b2df36c8f1df33c4fcfb7fc8f8c57cc0feaebfe9efbc3fa7c7530cc3ef7878c28dedc9cc3cf39e0d205f63ce8e9da3cfb3cffcd0d7181db6eb6db6cb2cbbebaef6cbaeb2df4e34c35c38df7df2db0eeaeb2cb2eb8c3adb8c35db6db6dbafbedbeebee7bdfecbeebefb2dbefbedbecb6efcef7efce00'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.05 dB'
'TXXX:replaygain_track_peak'                        '0.864635'

========================== row from database ==========================
                                              'id'  1495299
                                            'path'  /data/Music/Other/Pa/Klassiek/Vivaldi/Venetiaans concert.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  1015
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  20311753
                                           'mtime'  1621094172
                                   'redo_metaread'  0
                                        'rest_str'   Pa Klassiek prerock classical or classical instruments
                                      'tag_artist'  Vivaldi
                                     'tag_release'  None
                                       'tag_title'  Venetiaans concert
                                             'bpm'  143.4
                                    'search_title'  'concert':2 'venetiaans':1
                                   'search_artist'  'vivaldi':1
                                  'search_release'  
                                     'search_rest'  'classical':4 'instruments':6 'klassiek':2 'or':5 'pa':1 'prerock':3
                                    'search_combo'  'classical':7 'concert':2A 'instruments':9 'klassiek':5 'or':8 'pa':4 'prerock':6 'venetiaans':1A 'vivaldi':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  A#m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094172.3533275  (2021-05-15 17:56:12)
                             'size'  20311753