======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '49'
                                          'artist'  'marty feldman'
                                     'text_people'  ''
                                         'release'  'the crazy world of.....'
                                           'title'  'the elephant song'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', "
 "'q-other-1', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['comedy', 'comedian', 'all', 'actor', 'spotify']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted'
                                             'bpm'  '135.365'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000091 0000003D 00000373 0000014B 00009CA1 00009CA1 000021B6 000014B0 '
 '0000A2C1 0000B087')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000095D 0000000000210513 00000000 000EEE73 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'the crazy world of.....'
'TBPM' (BPM (beats per minute))                     '135.365'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unsorted'
'TENC' (Encoded by)                                 'iTunes v7.5.0.20'
'TIT2' (Title/songname/content description)         'the elephant song'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'marty feldman'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['comedy', 'comedian', 'all', 'actor', 'spotify']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.520639'

========================== row from database ==========================
                                              'id'  1329802
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/04 the elephant song.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  49
                                           'genre'  entertaining-unsorted
                                        'filesize'  984916
                                           'mtime'  1637330812
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean 04 entertaining unsorted
                                      'tag_artist'  marty feldman
                                     'tag_release'  the crazy world of.....
                                       'tag_title'  the elephant song
                                             'bpm'  135.365
                                    'search_title'  'elephant':2 'song':3 'the':1
                                   'search_artist'  'feldman':2 'marty':1
                                  'search_release'  'crazy':2 'of':4,5 'the':1 'world':3
                                     'search_rest'  '00poprockelectronic':1 'clean':2 'entertaining':3 'unsorted':4
                                    'search_combo'  '00poprockelectronic':11 'clean':12 'crazy':7C 'elephant':2A 'entertaining':13 'feldman':5B 'marty':4B 'of':9C,10C 'song':3A 'the':1A,6C 'unsorted':14 'world':8C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'comedian', 'all', 'actor', 'spotify']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330811.603917  (2021-11-19 15:06:51)
                             'size'  984916