======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '362'
                                          'artist'  'Kaskade'
                                     'text_people'  'dirrtyremixes.com / rmxlvrs.com'
                                         'release'  'Atmosphere - Remixes'
                                           'title'  'Atmosphere (Kaskade Redux)'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['dance', 'house', 'lounge', 'deep house', 'electronic', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '123.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'dirrtyremixes.com / rmxlvrs.com'
'COMM:iTunNORM:eng'                                 (' 000005A4 000005F4 000048F2 000052D9 00044FAC 00025E53 00008BCA 00008C71 '
 '00041CA7 00043129')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B36 0000000000F3CF3A 00000000 00DD0FD6 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Atmosphere - Remixes'
'TBPM' (BPM (beats per minute))                     '123.0'
'TCOM' (Composer)                                   'dirrtyremixes.com / rmxlvrs.com'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TENC' (Encoded by)                                 'iTunes 10.7.0.21'
'TIT2' (Title/songname/content description)         'Atmosphere (Kaskade Redux)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kaskade'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'lounge', 'deep house', 'electronic', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.84 dB'
'TXXX:replaygain_track_peak'                        '0.559576'

========================== row from database ==========================
                                              'id'  1286011
                                            'path'  /data/Music/Bulk/00poprockelectronic/deep house/Atmosphere(Kaskade Redux)              Kaskade s.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  362
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  14494888
                                           'mtime'  1621085288
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic deep house Atmosphere(Kaskade electronic th techno minimal or deephouse
                                      'tag_artist'  Kaskade
                                     'tag_release'  Atmosphere - Remixes
                                       'tag_title'  Atmosphere (Kaskade Redux)
                                             'bpm'  123.0
                                    'search_title'  'atmosphere':1 'kaskade':2,3 'redux':4,5
                                   'search_artist'  'kaskade':1
                                  'search_release'  'atmosphere':1 'remixes':2
                                     'search_rest'  '00poprockelectronic':1 'atmosphere':4 'atmospherekaskade':6 'deep':2 'deephouse':12 'electronic':7 'house':3 'kaskade':5 'minimal':10 'or':11 'techno':9 'th':8
                                    'search_combo'  '00poprockelectronic':9 'atmosphere':1A,7C,12 'atmospherekaskade':14 'deep':10 'deephouse':20 'electronic':15 'house':11 'kaskade':2A,3A,6B,13 'minimal':18 'or':19 'redux':4A,5A 'remixes':8C 'techno':17 'th':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'lounge', 'deep house', 'electronic', 'chillout']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085288.168796  (2021-05-15 15:28:08)
                             'size'  14494888