======================== unified (from filesystem) ========================
                                         'bitrate'  '150.048'
                                        'duration'  '599'
                                          'artist'  'Wynton Marsalis Septet'
                                     'text_people'  ''
                                         'release'  'Dimitri - Soul'
                                           'title'  'Sunflowers'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-2', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['jazz', 'smooth jazz', 'trumpet', 'instrumental', 'marchsongs']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '135.1'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Soul'
'TBPM' (BPM (beats per minute))                     '135.1'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Sunflowers'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wynton Marsalis Septet'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'smooth jazz', 'trumpet', 'instrumental', 'marchsongs']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.66 dB'
'TXXX:replaygain_track_peak'                        '0.587334'
'TXXX:youtube'                                      'PaGA-lZ7Jlk'

========================== row from database ==========================
                                              'id'  1477184
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/Soul/Wynton Marsalis Septet - Sunflowers-PaGA-lZ7Jlk.mp3
                                         'working'  None
                                         'bitrate'  150
                                    'duration_sec'  599
                                           'genre'  funk or soul
                                        'filesize'  11248588
                                           'mtime'  1628357635
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm PaGA lZ7Jlk funk or soul
                                      'tag_artist'  Wynton Marsalis Septet
                                     'tag_release'  Dimitri - Soul
                                       'tag_title'  Sunflowers
                                             'bpm'  135.1
                                    'search_title'  'sunflowers':1
                                   'search_artist'  'marsalis':2 'septet':3 'wynton':1
                                  'search_release'  'dimitri':1 'soul':2
                                     'search_rest'  'funk':3 'ga':7 'l':8 'lz7jlk':2 'or':4 'pa':6 'paga':1 'soul':5 'z7jlk':9
                                    'search_combo'  'dimitri':5C 'funk':9 'ga':13 'l':14 'lz7jlk':8 'marsalis':3B 'or':10 'pa':12 'paga':7 'septet':4B 'soul':6C,11 'sunflowers':1A 'wynton':2B 'z7jlk':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-2', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['jazz', 'smooth jazz', 'trumpet', 'instrumental', 'marchsongs']
                                        'tag_date'  
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1628357634.9394345  (2021-08-07 19:33:54)
                             'size'  11248588