======================== unified (from filesystem) ========================
                                         'bitrate'  '187.176'
                                        'duration'  '292'
                                          'artist'  '2562'
                                     'text_people'  ''
                                         'release'  'Aerial'
                                           'title'  'Basin Dub'
                                           '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-3', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['electronic', 'dub', 'techno', 'dubstep', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '10'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '139.9'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:http://www.cdtag.com:\x02\x00»+È\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xbb+\xc8\x00')
'TALB' (Album/Movie/Show title)                     'Aerial'
'TBPM' (BPM (beats per minute))                     '139.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2008-06-02'
'TIT2' (Title/songname/content description)         'Basin Dub'
'TKEY' (Initial key)                                '2A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               '2562'
'TPE2' (Band/orchestra/accompaniment)               '2562'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Tectonic'
'TRCK' (Track number/Position in set)               '6/10'
'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:Release type'                                 'Retail'
'TXXX:Rip date'                                     '2008-05-30'
'TXXX:Source'                                       'CD (LP)'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'dub', 'techno', 'dubstep', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.487930'

========================== row from database ==========================
                                              'id'  1358303
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/2562 - Aerial/06 Basin Dub.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  292
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  6879894
                                           'mtime'  1621085111
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats 06 electronic th techno minimal or deephouse
                                      'tag_artist'  2562
                                     'tag_release'  Aerial
                                       'tag_title'  Basin Dub
                                             'bpm'  139.9
                                    'search_title'  'basin':1 'dub':2
                                   'search_artist'  '2562':1
                                  'search_release'  'aerial':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'beats':5 'deephouse':11 'electronic':6 'harder':4 'house':3 'minimal':9 'or':10 'techno':8 'th':7
                                    'search_combo'  '00poprockelectronic':5 '00techno':6 '2562':3B 'aerial':4C 'basin':1A 'beats':9 'deephouse':15 'dub':2A 'electronic':10 'harder':8 'house':7 'minimal':13 'or':14 'techno':12 'th':11
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  2A
                                           '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-3', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'dub', 'techno', 'dubstep', 'minimal']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085111.3847294  (2021-05-15 15:25:11)
                             'size'  6879894