======================== unified (from filesystem) ========================
                                         'bitrate'  '67.647'
                                        'duration'  '524'
                                          'artist'  'Romano Mussolini'
                                     'text_people'  ''
                                         'release'  'Dimitri - Ful, Soul & Jazz'
                                           'title'  'Romano Mussolini -- Mirage-Z8hgm4uwJ1w'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['jazz', 'easy listening', 'lounge', 'drjazzmrfunkmusic', 'piano']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '141.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Ful, Soul & Jazz'
'TBPM' (BPM (beats per minute))                     '141.2'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Romano Mussolini -- Mirage-Z8hgm4uwJ1w'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Romano Mussolini'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'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:lastfmtags'                                   ['jazz', 'easy listening', 'lounge', 'drjazzmrfunkmusic', 'piano']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.33 dB'
'TXXX:replaygain_track_peak'                        '0.482006'
'TXXX:youtube'                                      ' Mirage-Z8hgm4uwJ1w'

========================== row from database ==========================
                                              'id'  1477493
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FunkSoulJazz/Romano Mussolini -- Mirage-Z8hgm4uwJ1w.mp3
                                         'working'  None
                                         'bitrate'  67
                                    'duration_sec'  524
                                           'genre'  funk or soul
                                        'filesize'  4437763
                                           'mtime'  1628357628
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FunkSoulJazz funk or soul
                                      'tag_artist'  Romano Mussolini
                                     'tag_release'  Dimitri - Ful, Soul & Jazz
                                       'tag_title'  Romano Mussolini -- Mirage-Z8hgm4uwJ1w
                                             'bpm'  141.2
                                    'search_title'  'j1w':9 'mirage':3,6 'miragez8hgm4uw':8 'miragez8hgm4uwj1w':5 'mussolini':2 'romano':1 'z8hgm4uw':7 'z8hgm4uwj1w':4
                                   'search_artist'  'mussolini':2 'romano':1
                                  'search_release'  'dimitri':1 'ful':2,3 'jazz':5 'soul':4
                                     'search_rest'  'funk':2 'funksouljazz':1 'jazz':5 'or':3 'soul':4
                                    'search_combo'  'dimitri':12C 'ful':13C,14C 'funk':18 'funksouljazz':17 'j1w':9A 'jazz':16C,21 'mirage':3A,6A 'miragez8hgm4uw':8A 'miragez8hgm4uwj1w':5A 'mussolini':2A,11B 'or':19 'romano':1A,10B 'soul':15C,20 'z8hgm4uw':7A 'z8hgm4uwj1w':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['jazz', 'easy listening', 'lounge', 'drjazzmrfunkmusic', 'piano']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357628.42552  (2021-08-07 19:33:48)
                             'size'  4437763