======================== unified (from filesystem) ========================
                                         'bitrate'  '103.063'
                                        'duration'  '207'
                                          'artist'  'Kaplan'
                                     'text_people'  ''
                                         'release'  'Dimitri 60s 70s'
                                           'title'  'I like'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['psychedelic rock', 'two or more artists with the same name']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '136.3'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri 60s 70s'
'TBPM' (BPM (beats per minute))                     '136.3'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'I like'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kaplan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'two or more artists with the same name']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.59 dB'
'TXXX:replaygain_track_peak'                        '0.545935'
'TXXX:youtube'                                      'Ll5D1TtqlPw'

========================== row from database ==========================
                                              'id'  1477451
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/60s70s/Kaplan - I like (UK pop sike masterpiece)-Ll5D1TtqlPw.mp3
                                         'working'  None
                                         'bitrate'  103
                                    'duration_sec'  207
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  2671924
                                           'mtime'  1620735979
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 60s70s (UK pop sike masterpiece) Ll5D1TtqlPw rock cppex psychedelic
                                      'tag_artist'  Kaplan
                                     'tag_release'  Dimitri 60s 70s
                                       'tag_title'  I like
                                             'bpm'  136.3
                                    'search_title'  'i':1 'like':2
                                   'search_artist'  'kaplan':1
                                  'search_release'  '60s':2 '70s':3 'dimitri':1
                                     'search_rest'  '60s70s':1 'cppex':10 'll5d1ttql':12 'll5d1ttqlpw':8 'masterpiece':6,7 'pop':4 'psychedelic':11 'pw':13 'rock':9 'sike':5 'uk':2,3
                                    'search_combo'  '60s':5C '60s70s':7 '70s':6C 'cppex':16 'dimitri':4C 'i':1A 'kaplan':3B 'like':2A 'll5d1ttql':18 'll5d1ttqlpw':14 'masterpiece':12,13 'pop':10 'psychedelic':17 'pw':19 'rock':15 'sike':11 'uk':8,9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['psychedelic rock', 'two or more artists with the same name']
                                        'tag_date'  1970
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620735979.0990086  (2021-05-11 14:26:19)
                             'size'  2671924