======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '415'
                                          'artist'  'Amon Tobin'
                                     'text_people'  ''
                                         'release'  'Anger / Grief'
                                           'title'  'Grief - Amon Tobin remix'
                                           'quals'  ("['Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'trip hop', 'idm', 'electronic', 'ninja tune']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '143.721'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Anger / Grief'
'TBPM' (BPM (beats per minute))                     '143.721'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Grief - Amon Tobin remix'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '415000'
'TPE1' (Lead performer(s)/Soloist(s))               'Amon Tobin'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronica', 'trip hop', 'idm', 'electronic', 'ninja tune']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.11 dB'
'TXXX:replaygain_track_peak'                        '0.615175'

========================== row from database ==========================
                                              'id'  1282638
                                            'path'  /data/Music/Bulk/00poprockelectronic/Amon Tobin/Ryuichi Sakamoto - Grief(Amon Tobin Remix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  415
                                           'genre'  rock-unsorted
                                        'filesize'  6643758
                                           'mtime'  1620389191
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Ryuichi Sakamoto Grief(Amon Remix) rock unsorted
                                      'tag_artist'  Amon Tobin
                                     'tag_release'  Anger / Grief
                                       'tag_title'  Grief - Amon Tobin remix
                                             'bpm'  143.721
                                    'search_title'  'amon':2 'grief':1 'remix':4 'tobin':3
                                   'search_artist'  'amon':1 'tobin':2
                                  'search_release'  'anger':1 'grief':2
                                     'search_rest'  '00poprockelectronic':1 'amon':5 'grief':4 'griefamon':6 'remix':7,8 'rock':9 'ryuichi':2 'sakamoto':3 'unsorted':10
                                    'search_combo'  '00poprockelectronic':9 'amon':2A,5B,13 'anger':7C 'grief':1A,8C,12 'griefamon':14 'remix':4A,15,16 'rock':17 'ryuichi':10 'sakamoto':11 'tobin':3A,6B 'unsorted':18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'trip hop', 'idm', 'electronic', 'ninja tune']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620389190.5087042  (2021-05-07 14:06:30)
                             'size'  6643758