======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '234'
                                          'artist'  'Threebus'
                                     'text_people'  ''
                                         'release'  'Zirkus Zirkus, Vol. 13 (Elektronische Tanzmusik)'
                                           'title'  'Louu (Original Mix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.01'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Zirkus Zirkus, Vol. 13 (Elektronische Tanzmusik)'
'TBPM' (BPM (beats per minute))                     '123.01'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Louu (Original Mix)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Threebus'
'TXXX:Purchase Date'                                '2016-04-08 05:38:23'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.66 dB'
'TXXX:replaygain_track_peak'                        '0.515244'

========================== row from database ==========================
                                              'id'  1326411
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/Threebus - Louu (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  234
                                           'genre'  electronic-unsorted
                                        'filesize'  9692570
                                           'mtime'  1620571194
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2015 2016 electronic unsorted
                                      'tag_artist'  Threebus
                                     'tag_release'  Zirkus Zirkus, Vol. 13 (Elektronische Tanzmusik)
                                       'tag_title'  Louu (Original Mix)
                                             'bpm'  123.01
                                    'search_title'  'louu':1 'mix':4,5 'original':2,3
                                   'search_artist'  'threebus':1
                                  'search_release'  'elektronische':5,6 'tanzmusik':7,8 'vol':3,4 'zirkus':1,2
                                     'search_rest'  '00poprockelectronic':1 '2015':4 '2016':5 'electronic':6 'guy':3 'marvin':2 'unsorted':7
                                    'search_combo'  '00poprockelectronic':15 '2015':18 '2016':19 'electronic':20 'elektronische':11C,12C 'guy':17 'louu':1A 'marvin':16 'mix':4A,5A 'original':2A,3A 'tanzmusik':13C,14C 'threebus':6B 'unsorted':21 'vol':9C,10C 'zirkus':7C,8C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571193.9728808  (2021-05-09 16:39:53)
                             'size'  9692570