======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '228'
                                          'artist'  'Orange Goblin'
                                     'text_people'  ''
                                         'release'  'Time Travelling Blues'
                                           'title'  'The Man Who Invented Time'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['stoner rock', 'stoner metal', 'hard rock', 'doom metal', 'stoner']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-stoner'
                                             'bpm'  '106.141'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Easy CD-DA Extractor - Free'
'TALB' (Album/Movie/Show title)                     'Time Travelling Blues'
'TBPM' (BPM (beats per minute))                     '106.141'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-stoner'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'The Man Who Invented Time'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Orange Goblin'
'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'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['stoner rock', 'stoner metal', 'hard rock', 'doom metal', 'stoner']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'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'                        '-1.33 dB'
'TXXX:replaygain_track_peak'                        '0.510292'

========================== row from database ==========================
                                              'id'  1421179
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Orange Goblin/Orange Goblin - Time Travelling Blues/04. The Man Who Invented Time.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  228
                                           'genre'  rock-gr-stoner
                                        'filesize'  7324544
                                           'mtime'  1636917500
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 04. rock gr stoner
                                      'tag_artist'  Orange Goblin
                                     'tag_release'  Time Travelling Blues
                                       'tag_title'  The Man Who Invented Time
                                             'bpm'  106.141
                                    'search_title'  'invented':4 'man':2 'the':1 'time':5 'who':3
                                   'search_artist'  'goblin':2 'orange':1
                                  'search_release'  'blues':3 'time':1 'travelling':2
                                     'search_rest'  '04':2,3 'classicprogpsy':1 'gr':5 'rock':4 'stoner':6
                                    'search_combo'  '04':12,13 'blues':10C 'classicprogpsy':11 'goblin':7B 'gr':15 'invented':4A 'man':2A 'orange':6B 'rock':14 'stoner':16 'the':1A 'time':5A,8C 'travelling':9C 'who':3A
                                    'tag_tracknum'  4
                                      '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-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['stoner rock', 'stoner metal', 'hard rock', 'doom metal', 'stoner']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636917500.3769987  (2021-11-14 20:18:20)
                             'size'  7324544