======================== unified (from filesystem) ========================
                                         'bitrate'  '232.383'
                                        'duration'  '455'
                                          'artist'  'Cold Dust'
                                     'text_people'  ''
                                         'release'  'techo 90s'
                                           'title'  'Stikki'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'q-syn-4', 'q-bass-1', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', "
 "'q-other-2', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['techno', 'schranz', 'masterpiece', 'leeds', 'hardtechno']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '139.466'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'techo 90s'
'TBPM' (BPM (beats per minute))                     '139.466'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Stikki'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cold Dust'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:CAT'                                          'C 024'
'TXXX:FORMAT'                                       '2xVinyl'
'TXXX:ID'                                           '82937'
'TXXX:LABEL'                                        'Communique Records'
'TXXX:PIC'                                          'http://i48.fastpic.ru/big/2013/0610/9a/b4326ec36a1b9fb272231079720c959a.jpeg'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['techno', 'schranz', 'masterpiece', 'leeds', 'hardtechno']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.15 dB'
'TXXX:replaygain_track_peak'                        '0.553131'

========================== row from database ==========================
                                              'id'  1350032
                                            'path'  /data/Music/Bulk/00poprockelectronic/00electro-electropop-synthpop/Techno 90s/Cold Dust - Stikki.mp3
                                         'working'  None
                                         'bitrate'  232
                                    'duration_sec'  455
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  13221888
                                           'mtime'  1639842791
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00electro electropop synthpop Techno electronic th techno acid
                                      'tag_artist'  Cold Dust
                                     'tag_release'  techo 90s
                                       'tag_title'  Stikki
                                             'bpm'  139.466
                                    'search_title'  'stikki':1
                                   'search_artist'  'cold':1 'dust':2
                                  'search_release'  '90s':2 'techo':1
                                     'search_rest'  '00electro':2 '00poprockelectronic':1 'acid':8 'electronic':6 'electropop':3 'synthpop':4 'techno':5 'th':7
                                    'search_combo'  '00electro':7 '00poprockelectronic':6 '90s':5C 'acid':13 'cold':2B 'dust':3B 'electronic':11 'electropop':8 'stikki':1A 'synthpop':9 'techno':10 'techo':4C 'th':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['techno', 'schranz', 'masterpiece', 'leeds', 'hardtechno']
                                        'tag_date'  1996
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1639842790.6630783  (2021-12-18 16:53:10)
                             'size'  13221888