======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '2807'
                                          'artist'  'mix4'
                                     'text_people'  ''
                                         'release'  'your house is mine'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-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-4']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-house'
                                             'bpm'  '135.274'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'your house is mine'
'TBPM' (BPM (beats per minute))                     '135.274'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-house'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'mix4'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'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'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.64 dB'
'TXXX:replaygain_track_peak'                        '0.838574'

========================== row from database ==========================
                                              'id'  1320257
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/mix4 - your house is mine/Mix4 - Your House is Mine - 01-Audiotrack 01.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  2807
                                           'genre'  electronic-th-house
                                        'filesize'  67371008
                                           'mtime'  1621696737
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno harder beats Mix4 Your House Mine 01 Audiotrack 01 electronic th
                                      'tag_artist'  mix4
                                     'tag_release'  your house is mine
                                       'tag_title'  None
                                             'bpm'  135.274
                                    'search_title'  None
                                   'search_artist'  'mix4':1
                                  'search_release'  'house':2 'is':3 'mine':4 'your':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'audiotrack':9 'beats':4 'electronic':10 'harder':3 'house':7 'mine':8 'mix4':5 'th':11 'your':6
                                    'search_combo'  '00poprockelectronic':6 '00techno':7 'audiotrack':14 'beats':9 'electronic':15 'harder':8 'house':3C,12 'is':4C 'mine':5C,13 'mix4':1B,10 'th':16 'your':2C,11
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-piano-1', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696736.9122288  (2021-05-22 17:18:56)
                             'size'  67371008