======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '125'
                                          'artist'  'Franco Micalizzi'
                                     'text_people'  'Franco Micalizzi'
                                         'release'  'Italia A Mano Armata'
                                           'title'  "Shall We Dance ('76)"
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soundtrack', 'film score', 'jazz', 'composer', 'italian']"
                                     'discogstags'  "['rock', 'stage & screen', 'soundtrack', 'pop rock', 'symphonic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '117.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x008\x00+\x009\x006\x00+\x003\x006\x00B\x005\x00+\x004\x00A\x009\x008\x00+\x006\x009\x002\x008\x00+\x007\x00D\x009\x004\x00+\x00A\x002\x00F\x003\x00+\x00C\x00D\x008\x008\x00+\x00E\x005\x008\x005\x00+\x001\x000\x00F\x00D\x007\x00+\x001\x002\x008\x00E\x000\x00+\x001\x006\x00E\x001\x009\x00+\x001\x009\x002\x00F\x009\x00+\x001\x00A\x007\x000\x000\x00+\x001\x00B\x008\x000\x005\x00+\x001\x00D\x007\x00C\x009\x00+\x002\x002\x005\x008\x00E\x00+\x002\x005\x006\x00E\x00B\x00+\x002\x007\x002\x008\x002\x00+\x002\x009\x001\x00E\x00F\x00+\x002\x00B\x006\x00F\x007\x00+\x002\x00E\x000\x003\x004\x00+\x002\x00F\x000\x007\x005\x00+\x003\x002\x006\x009\x004\x00+\x003\x004\x004\x000\x001\x00+\x003\x005\x00E\x00D\x001\x00\x00\x00')
'PRIV:AverageLevel:{\x12\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x12\x00\x00')
'PRIV:PeakValue:¡o\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1o\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Italia A Mano Armata'
'TBPM' (BPM (beats per minute))                     '117.7'
'TCOM' (Composer)                                   'Franco Micalizzi'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1976'
'TENC' (Encoded by)                                 'Tag&Rename 3.0.6'
'TIT2' (Title/songname/content description)         "Shall We Dance ('76)"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '125866'
'TPE1' (Lead performer(s)/Soloist(s))               "Franco Micalizzi - (F. 'Italia a Mano Armata')"
'TPE2' (Band/orchestra/accompaniment)               'Franco Micalizzi'
'TRCK' (Track number/Position in set)               '18'
'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:discogstags'                                  ['rock', 'stage & screen', 'soundtrack', 'pop rock', 'symphonic rock']
'TXXX:lastfmtags'                                   ['soundtrack', 'film score', 'jazz', 'composer', 'italian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.10 dB'
'TXXX:replaygain_track_peak'                        '0.868643'

========================== row from database ==========================
                                              'id'  1523768
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Franco Micalizzi - (F. _Italia a Mano Armata_) - Shall We Dance (_76).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  125
                                           'genre'  funk or soul
                                        'filesize'  3020050
                                           'mtime'  1628357828
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s (F. _Italia Armata_) (_76) funk or soul
                                      'tag_artist'  Franco Micalizzi
                                     'tag_release'  Italia A Mano Armata
                                       'tag_title'  Shall We Dance ('76)
                                             'bpm'  117.7
                                    'search_title'  '76':4,5 'dance':3 'shall':1 'we':2
                                   'search_artist'  'franco':1 'micalizzi':2
                                  'search_release'  'a':2 'armata':4 'italia':1 'mano':3
                                     'search_rest'  '70':6 '76':13,14 'armata':11,12 'easy':4 'f':8,9 'funk':2 'instr':5 'italia':10 'or':15 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':17 '76':4A,5A,24,25 'a':9C 'armata':11C,22,23 'dance':3A 'easy':15 'f':19,20 'franco':6B 'funk':13 'instr':16 'italia':8C,21 'mano':10C 'micalizzi':7B 'or':26 's':18 'shall':1A 'soul':14 'swing':12 'we':2A
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'film score', 'jazz', 'composer', 'italian']
                                        'tag_date'  1976
                                     'discogstags'  ['rock', 'stage & screen', 'soundtrack', 'pop rock', 'symphonic rock']

============================== file details ==============================
                                           'mtime'  1628357827.9792428  (2021-08-07 19:37:07)
                             'size'  3020050