======================== unified (from filesystem) ========================
                                         'bitrate'  '32.0'
                                        'duration'  '1568'
                                          'artist'  'Alberto Feri & I Musicals / Enrico Simonetti'
                                     'text_people'  '(autori vari)'
                                         'release'  'Sanremo/Festival Collage'
                                           'title'  "Festival Collage (cit. molte canzoni '75)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-2', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '101.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Sanremo/Festival Collage'
'TBPM' (BPM (beats per minute))                     '101.3'
'TCOM' (Composer)                                   '(autori vari)'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TENC' (Encoded by)                                 'cverdier'
'TIT2' (Title/songname/content description)         "Festival Collage (cit. molte canzoni '75)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Enrico Simonetti'
'TPE2' (Band/orchestra/accompaniment)               'Alberto Feri & I Musicals / Enrico Simonetti'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '1.002766'

========================== row from database ==========================
                                              'id'  1527881
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Enrico Simonetti - Festival Collage (cit. molte canzoni _75).mp3
                                         'working'  None
                                         'bitrate'  32
                                    'duration_sec'  1568
                                           'genre'  funk or soul
                                        'filesize'  6355795
                                           'mtime'  1628357822
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s _75) funk or soul
                                      'tag_artist'  Alberto Feri & I Musicals / Enrico Simonetti
                                     'tag_release'  Sanremo/Festival Collage
                                       'tag_title'  Festival Collage (cit. molte canzoni '75)
                                             'bpm'  101.3
                                    'search_title'  '75':7,8 'canzoni':6 'cit':3,4 'collage':2 'festival':1 'molte':5
                                   'search_artist'  'alberto':1 'enrico':5 'feri':2 'i':3 'musicals':4 'simonetti':6
                                  'search_release'  'collage':4 'festival':2 'sanremo':1 'sanremofestival':3
                                     'search_rest'  '70':6 '75':8,9 'easy':4 'funk':2 'instr':5 'or':10 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':24 '75':7A,8A,26,27 'alberto':9B 'canzoni':6A 'cit':3A,4A 'collage':2A,18C 'easy':22 'enrico':13B 'feri':10B 'festival':1A,16C 'funk':20 'i':11B 'instr':23 'molte':5A 'musicals':12B 'or':28 's':25 'sanremo':15C 'sanremofestival':17C 'simonetti':14B 'soul':21 'swing':19
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-2', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357822.3155336  (2021-08-07 19:37:02)
                             'size'  6355795