======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '189'
                                          'artist'  'Oskar Sala'
                                     'text_people'  ''
                                         'release'  "dimitri's dungeon mixtape"
                                           'title'  'Concertando Rubato From Elektronische Tanzsuite'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['electronic', 'contemporary classical', 'avant-garde', 'experimental', "
 "'trautonium']")
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-experimental;set-pl-dimitridm'
                                             'bpm'  '109.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "dimitri's dungeon mixtape"
'TBPM' (BPM (beats per minute))                     '109.6'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental', 'set-pl-dimitridm']
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Concertando Rubato From Elektronische Tanzsuite'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Oskar Sala'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['electronic',
 'contemporary classical',
 'avant-garde',
 'experimental',
 'trautonium']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.06 dB'
'TXXX:replaygain_track_peak'                        '0.706523'

========================== row from database ==========================
                                              'id'  1527097
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Cleveland Eaton - dimitri_s dungeon mixtape/22 Oskar Sala - Concertando Rubato From Elektronische Tanzsuite.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  189
                                           'genre'  electronic-experimental;set-pl-dimitridm
                                        'filesize'  4545565
                                           'mtime'  1636920538
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Cleveland Eaton dimitri_s 22 electronic experimental;set pl dimitridm
                                      'tag_artist'  Oskar Sala
                                     'tag_release'  dimitri's dungeon mixtape
                                       'tag_title'  Concertando Rubato From Elektronische Tanzsuite
                                             'bpm'  109.6
                                    'search_title'  'concertando':1 'elektronische':4 'from':3 'rubato':2 'tanzsuite':5
                                   'search_artist'  'oskar':1 'sala':2
                                  'search_release'  'dimitri':1 'dimitris':3 'dungeon':4 'mixtape':5 's':2
                                     'search_rest'  '22':5 'cleveland':1 'dimitri':3 'dimitridm':12 'eaton':2 'electronic':6 'experimental':7,9 'pl':11 's':4 'set':8,10
                                    'search_combo'  '22':17 'cleveland':13 'concertando':1A 'dimitri':8C,15 'dimitridm':24 'dimitris':10C 'dungeon':11C 'eaton':14 'electronic':18 'elektronische':4A 'experimental':19,21 'from':3A 'mixtape':12C 'oskar':6B 'pl':23 'rubato':2A 's':9C,16 'sala':7B 'set':20,22 'tanzsuite':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'contemporary classical', 'avant-garde', 'experimental', 'trautonium']
                                        'tag_date'  1980
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636920538.144984  (2021-11-14 21:08:58)
                             'size'  4545565