======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '286'
                                          'artist'  'Sigma feat. Paloma Faith'
                                     'text_people'  ''
                                         'release'  'Changing'
                                           'title'  'Changing'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', "
 "'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['2014 single', 'uplifting', 'party', 'featuring', 'wake-up song']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '113.900'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Changing'
'TBPM' (BPM (beats per minute))                     '113.900'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Changing'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sigma feat. Paloma Faith'
'TPE2' (Band/orchestra/accompaniment)               'Sigma feat. Paloma Faith'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:date'                                         '2014'
'TXXX:lastfmtags'                                   ['2014 single', 'uplifting', 'party', 'featuring', 'wake-up song']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.08 dB'
'TXXX:replaygain_track_peak'                        '0.297087'

========================== row from database ==========================
                                              'id'  1357400
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/Sigma ft. Paloma Faith - Changing.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  286
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  11464576
                                           'mtime'  1620573858
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set ft. electronic generic or radio dance
                                      'tag_artist'  Sigma feat. Paloma Faith
                                     'tag_release'  Changing
                                       'tag_title'  Changing
                                             'bpm'  113.9
                                    'search_title'  'changing':1
                                   'search_artist'  'faith':5 'feat':2,3 'paloma':4 'sigma':1
                                  'search_release'  'changing':1
                                     'search_rest'  '00poprockelectronic':1 'dance':9 'electronic':5 'ft':3,4 'generic':6 'or':7 'radio':8 'set':2
                                    'search_combo'  '00poprockelectronic':8 'changing':1A,7C 'dance':16 'electronic':12 'faith':6B 'feat':3B,4B 'ft':10,11 'generic':13 'or':14 'paloma':5B 'radio':15 'set':9 'sigma':2B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['2014 single', 'uplifting', 'party', 'featuring', 'wake-up song']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573858.305445  (2021-05-09 17:24:18)
                             'size'  11464576