======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '272'
                                          'artist'  'Lemon Jelly'
                                     'text_people'  ''
                                         'release'  'Nice Weather for Ducks'
                                           'title'  'Soft'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '103.802'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Nice Weather for Ducks'
'TBPM' (BPM (beats per minute))                     '103.802'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Soft'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lemon Jelly'
'TRCK' (Track number/Position in set)               '2'
'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'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '0.633090'

========================== row from database ==========================
                                              'id'  1308821
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lemon Jelly/MBZ;#Lemon Jelly;#Nice Weather For Ducks;#02;#Soft.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  272
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  4360989
                                           'mtime'  1636911324
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Lemon Jelly;#Nice For Ducks;#02;#Soft electronic trip hop downtempo acid jazz
                                      'tag_artist'  Lemon Jelly
                                     'tag_release'  Nice Weather for Ducks
                                       'tag_title'  Soft
                                             'bpm'  103.802
                                    'search_title'  'soft':1
                                   'search_artist'  'jelly':2 'lemon':1
                                  'search_release'  'ducks':4 'for':3 'nice':1 'weather':2
                                     'search_rest'  '00poprockelectronic':1 '02':12,15 'acid':21 'downtempo':20 'ducks':11,14 'electronic':17 'for':10 'hop':19 'jazz':22 'jelly':6,8 'lemon':3,5 'mbz':2,4 'nice':7,9 'soft':13,16 'trip':18
                                    'search_combo'  '00poprockelectronic':8 '02':19,22 'acid':28 'downtempo':27 'ducks':7C,18,21 'electronic':24 'for':6C,17 'hop':26 'jazz':29 'jelly':3B,13,15 'lemon':2B,10,12 'mbz':9,11 'nice':4C,14,16 'soft':1A,20,23 'trip':25 'weather':5C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636911324.3272417  (2021-11-14 18:35:24)
                             'size'  4360989