======================== unified (from filesystem) ========================
                                         'bitrate'  '298.985'
                                        'duration'  '436'
                                          'artist'  'Chris Liberator, Sterling Moss And Patrick Dsp'
                                     'text_people'  ''
                                         'release'  'maleta  acid rave'
                                           'title'  'Progress (Original Mix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'Q-GRIT-3', 'q-bass-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', 'Q-MIXBEAT-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '141.3'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'maleta  acid rave'
'TBPM' (BPM (beats per minute))                     '141.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TDRC' (Recording time)                             '2013'
'TENC' (Encoded by)                                 "I'm Too Lame To Change The Default Settings"
'TIT2' (Title/songname/content description)         'Progress (Original Mix)'
'TKEY' (Initial key)                                '1A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Chris Liberator, Sterling Moss And Patrick Dsp'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'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-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.04 dB'
'TXXX:replaygain_track_peak'                        '0.503190'

========================== row from database ==========================
                                              'id'  1483729
                                            'path'  /data/Music/Bulk/00poprockelectronic/maleta__ acid rave/chris liberator, sterling moss and patrick dsp - progress (original mix).mp3
                                         'working'  None
                                         'bitrate'  299
                                    'duration_sec'  436
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  16308746
                                           'mtime'  1620573750
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic maleta__ chris liberator, sterling moss and patrick dsp progress (original mix) electronic th techno
                                      'tag_artist'  Chris Liberator, Sterling Moss And Patrick Dsp
                                     'tag_release'  maleta  acid rave
                                       'tag_title'  Progress (Original Mix)
                                             'bpm'  141.3
                                    'search_title'  'mix':4,5 'original':2,3 'progress':1
                                   'search_artist'  'and':6 'chris':1 'dsp':8 'liberator':2,3 'moss':5 'patrick':7 'sterling':4
                                  'search_release'  'acid':2 'maleta':1 'rave':3
                                     'search_rest'  '00poprockelectronic':1 'and':8 'chris':3 'dsp':10 'electronic':16 'liberator':4,5 'maleta':2 'mix':14,15 'moss':7 'original':12,13 'patrick':9 'progress':11 'sterling':6 'techno':18 'th':17
                                    'search_combo'  '00poprockelectronic':17 'acid':15C 'and':11B,24 'chris':6B,19 'dsp':13B,26 'electronic':32 'liberator':7B,8B,20,21 'maleta':14C,18 'mix':4A,5A,30,31 'moss':10B,23 'original':2A,3A,28,29 'patrick':12B,25 'progress':1A,27 'rave':16C 'sterling':9B,22 'techno':34 'th':33
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-PLAY-2', 'Q-SYN-4', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-2', 'q-bass-2']
                                      'lastfmtags'  []
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573749.8025498  (2021-05-09 17:22:29)
                             'size'  16308746