======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '102'
                                          'artist'  'Brainless Wankers'
                                     'text_people'  ''
                                         'release'  'Endorphin'
                                           'title'  'Karl Marx Knew How To Party'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ska punk', 'punk rock', 'ska', 'punk', 'rock']"
                                     'discogstags'  "['punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk-ska'
                                             'bpm'  '100.058'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Endorphin'
'TBPM' (BPM (beats per minute))                     '100.058'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk-ska'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Karl Marx Knew How To Party'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Brainless Wankers'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['punk', 'rock']
'TXXX:lastfmtags'                                   ['ska punk', 'punk rock', 'ska', 'punk', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.513884'

========================== row from database ==========================
                                              'id'  719211
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Brainless Wankers/MBZ;#Brainless Wankers;#Endorphin;#12;#Karl Marx Knew How To Party.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  102
                                           'genre'  rock-gr-punk-ska
                                        'filesize'  2462658
                                           'mtime'  1620532869
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism MBZ;#Brainless Wankers;#Endorphin;#12;#Karl rock gr punk ska
                                      'tag_artist'  Brainless Wankers
                                     'tag_release'  Endorphin
                                       'tag_title'  Karl Marx Knew How To Party
                                             'bpm'  100.058
                                    'search_title'  'how':4 'karl':1 'knew':3 'marx':2 'party':6 'to':5
                                   'search_artist'  'brainless':1 'wankers':2
                                  'search_release'  'endorphin':1
                                     'search_rest'  '12':11,15 'brainless':6,8 'endorphin':10,14 'gr':18 'hiphop':1 'karl':12,16 'mbz':5,7 'punk':19 'rap':2 'rnb':3 'rock':17 'ska':20 'turntablism':4 'wankers':9,13
                                    'search_combo'  '12':20,24 'brainless':7B,15,17 'endorphin':9C,19,23 'gr':27 'hiphop':10 'how':4A 'karl':1A,21,25 'knew':3A 'marx':2A 'mbz':14,16 'party':6A 'punk':28 'rap':11 'rnb':12 'rock':26 'ska':29 'to':5A 'turntablism':13 'wankers':8B,18,22
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['ska punk', 'punk rock', 'ska', 'punk', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['punk', 'rock']

============================== file details ==============================
                                           'mtime'  1620532869.0687022  (2021-05-09 06:01:09)
                             'size'  2462658