======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '122'
                                          'artist'  'Lemon Jelly'
                                     'text_people'  ''
                                         'release'  'Swordfish'
                                           'title'  'Kneel Before Your God'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '107.721'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Swordfish'
'TBPM' (BPM (beats per minute))                     '107.721'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TIT2' (Title/songname/content description)         'Kneel Before Your God'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lemon Jelly'
'TRCK' (Track number/Position in set)               '8'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.63 dB'
'TXXX:replaygain_track_peak'                        '0.611030'

========================== row from database ==========================
                                              'id'  1356976
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lemon Jelly/MBZ;#Lemon Jelly;#Swordfish;#08;#Kneel Before Your God.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  122
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  4884734
                                           'mtime'  1636911324
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Lemon Jelly;#Swordfish;#08;#Kneel electronic trip hop downtempo acid jazz
                                      'tag_artist'  Lemon Jelly
                                     'tag_release'  Swordfish
                                       'tag_title'  Kneel Before Your God
                                             'bpm'  107.721
                                    'search_title'  'before':2 'god':4 'kneel':1 'your':3
                                   'search_artist'  'jelly':2 'lemon':1
                                  'search_release'  'swordfish':1
                                     'search_rest'  '00poprockelectronic':1 '08':8,12 'acid':18 'downtempo':17 'electronic':14 'hop':16 'jazz':19 'jelly':6,10 'kneel':9,13 'lemon':3,5 'mbz':2,4 'swordfish':7,11 'trip':15
                                    'search_combo'  '00poprockelectronic':8 '08':15,19 'acid':25 'before':2A 'downtempo':24 'electronic':21 'god':4A 'hop':23 'jazz':26 'jelly':6B,13,17 'kneel':1A,16,20 'lemon':5B,10,12 'mbz':9,11 'swordfish':7C,14,18 'trip':22 'your':3A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636911324.3314419  (2021-11-14 18:35:24)
                             'size'  4884734