======================== unified (from filesystem) ========================
                                         'bitrate'  '182.533'
                                        'duration'  '401'
                                          'artist'  'Lemon Jelly'
                                     'text_people'  ''
                                         'release'  'lemonjelly.ky'
                                           'title'  'Nervous Tension'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic;electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '106.7'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'lemonjelly.ky'
'TBPM' (BPM (beats per minute))                     '106.7'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'electronic-trip hop or downtempo or acid jazz']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Nervous Tension'
'TKEY' (Initial key)                                '11B'
'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'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.82 dB'
'TXXX:replaygain_track_peak'                        '0.716518'

========================== row from database ==========================
                                              'id'  1314521
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lemon Jelly/lemonjelly.ky/02 - Lemon Jelly - Nervous Tension.mp3
                                         'working'  None
                                         'bitrate'  182
                                    'duration_sec'  401
                                           'genre'  electronic;electronic-trip hop or downtempo or acid jazz
                                        'filesize'  9166720
                                           'mtime'  1636914122
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 electronic;electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Lemon Jelly
                                     'tag_release'  lemonjelly.ky
                                       'tag_title'  Nervous Tension
                                             'bpm'  106.7
                                    'search_title'  'nervous':1 'tension':2
                                   'search_artist'  'jelly':2 'lemon':1
                                  'search_release'  'ky':2 'lemonjelly':1 'lemonjellyky':3
                                     'search_rest'  '00poprockelectronic':1 'acid':10 'downtempo':9 'electronic':2,3,4,5 'hop':7 'jazz':11 'or':8 'trip':6
                                    'search_combo'  '00poprockelectronic':8 'acid':17 'downtempo':16 'electronic':9,10,11,12 'hop':14 'jazz':18 'jelly':4B 'ky':6C 'lemon':3B 'lemonjelly':5C 'lemonjellyky':7C 'nervous':1A 'or':15 'tension':2A 'trip':13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11B
                                           '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-2', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['electronica', 'downtempo', 'trip hop', 'electronic', 'chillout']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636914122.4327934  (2021-11-14 19:22:02)
                             'size'  9166720