======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '173'
                                          'artist'  'Jimmy Clanton'
                                     'text_people'  'Cosimo Matassa/Jimmy Clanton'
                                         'release'  'The Best Of Ace Records'
                                           'title'  'A Letter To An Angel'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'country', '60s', 'oldies', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '101.819'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-210 POS 25'
'COMM:ID3v1 Comment:XXX'                            '58-210 POS 25'
'MCDI' (Music CD identifier)                        MCDI(data=b'E\x00+\x009\x006\x00+\x003\x000\x005\x009\x00+\x005\x00B\x007\x004\x00+\x008\x003\x005\x00B\x00+\x00A\x00C\x00D\x002\x00+\x00D\x004\x004\x001\x00+\x001\x000\x00B\x009\x00B\x00+\x001\x003\x00E\x007\x00F\x00+\x001\x006\x009\x00F\x004\x00+\x001\x009\x006\x008\x003\x00+\x001\x00B\x00D\x001\x00E\x00+\x001\x00E\x003\x005\x007\x00+\x002\x001\x000\x00F\x002\x00+\x002\x004\x003\x002\x001\x00+\x002\x006\x00B\x00F\x003\x00\x00\x00')
'PRIV:AverageLevel:F\x08\x00\x00'                   PRIV(owner='AverageLevel', data=b'F\x08\x00\x00')
'PRIV:PeakValue:öI\x00\x00'                         PRIV(owner='PeakValue', data=b'\xf6I\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/Provider:U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMCollectionID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMCollectionID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/WMContentID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMContentID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'The Best Of Ace Records'
'TBPM' (BPM (beats per minute))                     '101.819'
'TCOM' (Composer)                                   'Cosimo Matassa/Jimmy Clanton'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'A Letter To An Angel'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '173706'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Clanton'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Scotti Bros.'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'country', '60s', 'oldies', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.574575'

========================== row from database ==========================
                                              'id'  1445042
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-210 - Jimmy Clanton - A Letter To An Angel.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  173
                                           'genre'  prerock-unsorted
                                        'filesize'  6944681
                                           'mtime'  1676046421
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 210 prerock unsorted
                                      'tag_artist'  Jimmy Clanton
                                     'tag_release'  The Best Of Ace Records
                                       'tag_title'  A Letter To An Angel
                                             'bpm'  101.819
                                    'search_title'  'a':1 'an':4 'angel':5 'letter':2 'to':3
                                   'search_artist'  'clanton':2 'jimmy':1
                                  'search_release'  'ace':4 'best':2 'of':3 'records':5 'the':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '210':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':17 '1958':18 '210':20 '58':19 'a':1A 'ace':11C 'an':4A 'angel':5A 'best':9C 'clanton':7B 'country':16 'exotica':14 'jazz':13 'jimmy':6B 'letter':2A 'of':10C 'oldies':15 'prerock':21 'records':12C 'the':8C 'to':3A 'unsorted':22
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['rock and roll', 'country', '60s', 'oldies', '50s']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676046420.8496072  (2023-02-10 17:27:00)
                             'size'  6944681