======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '190'
                                          'artist'  'Touch and Go'
                                     'text_people'  ''
                                         'release'  'I find you very attractive'
                                           'title'  'Would you go to bed with me'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', 'Q-UNU-1', "
 "'Q-PLAY-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-vocals-1', 'q-mixbeat-3', 'Q-PIANO-2']")
                                      'lastfmtags'  "['trip hop', 'jazz', 'acid jazz', 'electronic', 'chillout']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '113.964'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{$\x00\x00'                      PRIV(owner='AverageLevel', data=b'{$\x00\x00')
'PRIV:PeakValue:¡}\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1}\x00\x00')
'TALB' (Album/Movie/Show title)                     'I find you very attractive'
'TBPM' (BPM (beats per minute))                     '113.964'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Would you go to bed with me'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Touch and Go'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['trip hop', 'jazz', 'acid jazz', 'electronic', 'chillout']
'TXXX:q-bass'                                       '4'
'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-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.436820'

========================== row from database ==========================
                                              'id'  1359424
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/Touch and Go - Would you go to bed with me.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  190
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  6107849
                                           'mtime'  1620573859
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set electronic generic or radio dance
                                      'tag_artist'  Touch and Go
                                     'tag_release'  I find you very attractive
                                       'tag_title'  Would you go to bed with me
                                             'bpm'  113.964
                                    'search_title'  'bed':5 'go':3 'me':7 'to':4 'with':6 'would':1 'you':2
                                   'search_artist'  'and':2 'go':3 'touch':1
                                  'search_release'  'attractive':5 'find':2 'i':1 'very':4 'you':3
                                     'search_rest'  '00poprockelectronic':1 'dance':7 'electronic':3 'generic':4 'or':5 'radio':6 'set':2
                                    'search_combo'  '00poprockelectronic':16 'and':9B 'attractive':15C 'bed':5A 'dance':22 'electronic':18 'find':12C 'generic':19 'go':3A,10B 'i':11C 'me':7A 'or':20 'radio':21 'set':17 'to':4A 'touch':8B 'very':14C 'with':6A 'would':1A 'you':2A,13C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-3', 'Q-PIANO-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-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['trip hop', 'jazz', 'acid jazz', 'electronic', 'chillout']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573858.7150464  (2021-05-09 17:24:18)
                             'size'  6107849