======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '493'
                                          'artist'  'Punk Floyd'
                                     'text_people'  ''
                                         'release'  'Punk Floyd Have Landed'
                                           'title'  'Analogue Fest'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'Q-GRIT-2', 'q-bass-1', 'q-drums-4', 'q-other-2', 'q-piano-1', "
 "'q-vocals-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-1', 'Q-MIXBEAT-4']")
                                      'lastfmtags'  "['acid techno', 'techno', 'acid']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '12'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '145.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000001F3 000001D4 00000E99 00000DB1 00072205 00072205 000080A3 00007CB4 '
 '00066297 00066297')
'COMM:iTunes_CDDB_IDs:eng'                          '12+3E903F271F54881856828841F559F737+241877'
'TALB' (Album/Movie/Show title)                     'Punk Floyd Have Landed'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TENC' (Encoded by)                                 'iTunes v4.7.0.42'
'TIT2' (Title/songname/content description)         'Analogue Fest'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Punk Floyd'
'TRCK' (Track number/Position in set)               '6/12'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['acid techno', 'techno', 'acid']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.65 dB'
'TXXX:replaygain_track_peak'                        '0.994165'

========================== row from database ==========================
                                              'id'  1484499
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Punk Floyd_-_Punk Floyd Have Landed/06 analogue fest.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  493
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  11856966
                                           'mtime'  1620586524
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Floyd_ _Punk 06 analogue fest electronic th techno acid
                                      'tag_artist'  Punk Floyd
                                     'tag_release'  Punk Floyd Have Landed
                                       'tag_title'  Analogue Fest
                                             'bpm'  145.8
                                    'search_title'  'analogue':1 'fest':2
                                   'search_artist'  'floyd':2 'punk':1
                                  'search_release'  'floyd':2 'have':3 'landed':4 'punk':1
                                     'search_rest'  'acid':9 'analogue':4 'classicprogpsy':1 'electronic':6 'fest':5 'floyd':2 'punk':3 'techno':8 'th':7
                                    'search_combo'  'acid':17 'analogue':1A,12 'classicprogpsy':9 'electronic':14 'fest':2A,13 'floyd':4B,6C,10 'have':7C 'landed':8C 'punk':3B,5C,11 'techno':16 'th':15
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-4', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-4', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['acid techno', 'techno', 'acid']
                                        'tag_date'  
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1620586523.535028  (2021-05-09 20:55:23)
                             'size'  11856966