======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '144'
                                          'artist'  'Bill Geldard'
                                     'text_people'  ''
                                         'release'  'PM 012 Light and Shade'
                                           'title'  'A3 Ramrod'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'library music', 'funk', 'easy listening']"
                                     'discogstags'  "['jazz', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'soundtrack-library'
                                             'bpm'  '134.824'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x006\x00+\x009\x006\x00+\x003\x006\x00E\x006\x00+\x007\x00F\x000\x00E\x00+\x009\x003\x009\x003\x00+\x00C\x008\x000\x000\x00+\x001\x000\x008\x009\x00D\x00+\x001\x004\x009\x00B\x006\x00+\x001\x009\x004\x004\x001\x00+\x001\x00D\x00A\x00E\x008\x00+\x002\x002\x001\x00D\x00D\x00+\x002\x005\x00C\x005\x002\x00+\x002\x008\x00C\x006\x008\x00+\x002\x00D\x000\x00A\x00D\x00+\x002\x00F\x00B\x001\x003\x00+\x003\x003\x00C\x00F\x005\x00+\x003\x006\x00C\x00E\x00A\x00+\x003\x00A\x00F\x004\x002\x00+\x003\x00D\x006\x000\x006\x00+\x004\x000\x004\x00B\x00F\x00+\x004\x005\x00F\x003\x00B\x00+\x004\x008\x00E\x008\x00B\x00+\x004\x00B\x009\x00D\x003\x00+\x004\x00F\x007\x00F\x00D\x00\x00\x00')
'PRIV:AverageLevel:{\x15\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x15\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\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)                     'PM 012 Light and Shade'
'TBPM' (BPM (beats per minute))                     '134.824'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-library'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'A3 Ramrod'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '144720'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Geldard'
'TPE2' (Band/orchestra/accompaniment)               'Bill Geldard'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'stage & screen']
'TXXX:lastfmtags'                                   ['lounge', 'library music', 'funk', 'easy listening']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.704758'

========================== row from database ==========================
                                              'id'  981102
                                            'path'  /data/Music/Bulk/0soundtrack/PARRY MUSIC LIBRARY/PM 012 Light and Shade/13 A3 Ramrod.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  144
                                           'genre'  soundtrack-library
                                        'filesize'  5788112
                                           'mtime'  1636911606
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack PARRY MUSIC LIBRARY 13 soundtrack library
                                      'tag_artist'  Bill Geldard
                                     'tag_release'  PM 012 Light and Shade
                                       'tag_title'  A3 Ramrod
                                             'bpm'  134.824
                                    'search_title'  'a3':1 'ramrod':2
                                   'search_artist'  'bill':1 'geldard':2
                                  'search_release'  'and':3 'light':2 'pm':1 'shade':4
                                     'search_rest'  '0soundtrack':1 'library':4 'music':3 'parry':2 'soundtrack':5
                                    'search_combo'  '0soundtrack':9 'a3':1A 'and':7C 'bill':3B 'geldard':4B 'library':12 'light':6C 'music':11 'parry':10 'pm':5C 'ramrod':2A 'shade':8C 'soundtrack':13
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'library music', 'funk', 'easy listening']
                                        'tag_date'  1975
                                     'discogstags'  ['jazz', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1636911605.8457627  (2021-11-14 18:40:05)
                             'size'  5788112