======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '505'
                                          'artist'  'Alan Fitzpatrick'
                                     'text_people'  ''
                                         'release'  'Dark Techno'
                                           'title'  'Terra Firma'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['techno', 'electronic', 'minimal', 'tech house', 'bedrock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '126'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:http://www.cdtag.com:\x01\x01@K\x8f\x00'      PRIV(owner='http://www.cdtag.com', data=b'\x01\x01@K\x8f\x00')
'TALB' (Album/Movie/Show title)                     'Dark Techno'
'TBPM' (BPM (beats per minute))                     '126'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDOR' (Original release time)                      '2016-08-01'
'TDRC' (Recording time)                             '2016'
'TFLT' (File type)                                  'MPG/3'
'TIT2' (Title/songname/content description)         'Terra Firma'
'TKEY' (Initial key)                                '6A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Alan Fitzpatrick'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Drumcode'
'TSRC' (ISRC (international standard recording code))  'GBUR61600081'
'TXXX:Catalog #'                                    'DC159'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Normal'
'TXXX:Rip date'                                     '2016-00-00'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['techno', 'electronic', 'minimal', 'tech house', 'bedrock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:release date'                                 '2016-08-01'
'TXXX:replaygain_track_gain'                        '-1.88 dB'
'TXXX:replaygain_track_peak'                        '0.403350'

========================== row from database ==========================
                                              'id'  1288055
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dark - Techno/Alan Fitzpatrick - Terra Firma ss.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  505
                                           'genre'  electronic-th-techno
                                        'filesize'  20243113
                                           'mtime'  1620568795
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ss electronic th techno
                                      'tag_artist'  Alan Fitzpatrick
                                     'tag_release'  Dark Techno
                                       'tag_title'  Terra Firma
                                             'bpm'  126.0
                                    'search_title'  'firma':2 'terra':1
                                   'search_artist'  'alan':1 'fitzpatrick':2
                                  'search_release'  'dark':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'ss':2 'techno':5 'th':4
                                    'search_combo'  '00poprockelectronic':7 'alan':3B 'dark':5C 'electronic':9 'firma':2A 'fitzpatrick':4B 'ss':8 'techno':6C,11 'terra':1A 'th':10
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['techno', 'electronic', 'minimal', 'tech house', 'bedrock']
                                        'tag_date'  2016
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620568795.4103289  (2021-05-09 15:59:55)
                             'size'  20243113