======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '269'
                                          'artist'  'Nightmares on Wax'
                                     'text_people'  ''
                                         'release'  'Carboot Soul'
                                           'title'  'Survival'
                                           '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-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['lounge', 'downtempo', 'trip hop', 'chillout', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '84.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Carboot Soul'
'TBPM' (BPM (beats per minute))                     '84.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Survival'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nightmares on Wax'
'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:lastfmtags'                                   ['lounge', 'downtempo', 'trip hop', 'chillout', 'electronic']
'TXXX:original release date'                        ['1999', '1999']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.723174'

========================== row from database ==========================
                                              'id'  1331306
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Nightmares On Wax/Carboot Soul/Nightmares On Wax - Carboot Soul - 09 - Survival.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  269
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  6459080
                                           'mtime'  1636910808
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip On On 09 electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Nightmares on Wax
                                     'tag_release'  Carboot Soul
                                       'tag_title'  Survival
                                             'bpm'  84.0
                                    'search_title'  'survival':1
                                   'search_artist'  'nightmares':1 'on':2 'wax':3
                                  'search_release'  'carboot':1 'soul':2
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'acid':9 'downtempo':8 'electronic':4 'hop':6 'jazz':10 'on':3 'or':7 'trip':5
                                    'search_combo'  '00poprockelectronic':7 '00trip':8 'acid':15 'carboot':5C 'downtempo':14 'electronic':10 'hop':12 'jazz':16 'nightmares':2B 'on':3B,9 'or':13 'soul':6C 'survival':1A 'trip':11 'wax':4B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'downtempo', 'trip hop', 'chillout', 'electronic']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910807.5431232  (2021-11-14 18:26:47)
                             'size'  6459080