======================== unified (from filesystem) ========================
                                         'bitrate'  '191.057'
                                        'duration'  '156'
                                          'artist'  'The Spotnicks'
                                     'text_people'  ''
                                         'release'  'The Spotnicks in Berlin'
                                           'title'  "Walkin' Back To Happiness"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-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-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'surf', 'ed hits', 'guitar', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '89.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'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')
'TALB' (Album/Movie/Show title)                     'The Spotnicks in Berlin'
'TBPM' (BPM (beats per minute))                     '89.1'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1964'
'TIT2' (Title/songname/content description)         "Walkin' Back To Happiness"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '0'
'TPE1' (Lead performer(s)/Soloist(s))               'The Spotnicks'
'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:lastfmtags'                                   ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.599013'

========================== row from database ==========================
                                              'id'  1518083
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Spotnicks-1962-1990-23 cd/The Spotnicks-1964-In Berlin/Spotncks - 12 - Walkin_ Back To Happiness.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  156
                                           'genre'  rock-pop-surf
                                        'filesize'  3752268
                                           'mtime'  1620736573
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1962 1990 23 cd 1964 In Spotncks 12 Walkin_ rock pop surf
                                      'tag_artist'  The Spotnicks
                                     'tag_release'  The Spotnicks in Berlin
                                       'tag_title'  Walkin' Back To Happiness
                                             'bpm'  89.1
                                    'search_title'  'back':3 'happiness':5 'to':4 'walkin':1,2
                                   'search_artist'  'spotnicks':2 'the':1
                                  'search_release'  'berlin':4 'in':3 'spotnicks':2 'the':1
                                     'search_rest'  '1962':1 '1964':5 '1990':2 '23':3 'cd':4 'in':6 'pop':10 'rock':9 'spotncks':7 'surf':11 'walkin':8
                                    'search_combo'  '1962':12 '1964':16 '1990':13 '23':14 'back':3A 'berlin':11C 'cd':15 'happiness':5A 'in':10C,17 'pop':21 'rock':20 'spotncks':18 'spotnicks':7B,9C 'surf':22 'the':6B,8C 'to':4A 'walkin':1A,2A,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', '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'  ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
                                        'tag_date'  1964
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736573.4557707  (2021-05-11 14:36:13)
                             'size'  3752268