======================== unified (from filesystem) ========================
                                         'bitrate'  '149.616'
                                        'duration'  '380'
                                          'artist'  'Black Sun Empire'
                                     'text_people'  ''
                                         'release'  'Driving Insane-Retail 2CD'
                                           'title'  "B' Negative (Illskillz Remix)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '86.474'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Driving Insane-Retail 2CD'
'TBPM' (BPM (beats per minute))                     '86.474'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         "B' Negative (Illskillz Remix)"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Black Sun Empire'
'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'                                   ['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.11 dB'
'TXXX:replaygain_track_peak'                        '0.538169'

========================== row from database ==========================
                                              'id'  1300480
                                            'path'  /data/Music/Bulk/00poprockelectronic/Black Sun Empire/Driving Insane/111-black_sun_empire_-_b_negative_(illskillz_remix)-boss.mp3
                                         'working'  None
                                         'bitrate'  149
                                    'duration_sec'  380
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  7113542
                                           'mtime'  1621696764
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 111 black_sun_empire_ _b_negative_(illskillz_remix) boss electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Black Sun Empire
                                     'tag_release'  Driving Insane-Retail 2CD
                                       'tag_title'  B' Negative (Illskillz Remix)
                                             'bpm'  86.474
                                    'search_title'  'b':1,2 'illskillz':4,5 'negative':3 'remix':6,7
                                   'search_artist'  'black':1 'empire':3 'sun':2
                                  'search_release'  '2cd':5 'driving':1 'insane':2 'insaneretail':4 'retail':3
                                     'search_rest'  '00poprockelectronic':1 '111':2 'b':6,10 'black':3 'boss':14 'breakbeat':17 'dnb':19 'electronic':15 'empire':5 'illskillz':8,12 'jungle':20 'negative':7,11 'or':18 'remix':9,13 'sun':4 'th':16
                                    'search_combo'  '00poprockelectronic':16 '111':17 '2cd':15C 'b':1A,2A,21,25 'black':8B,18 'boss':29 'breakbeat':32 'dnb':34 'driving':11C 'electronic':30 'empire':10B,20 'illskillz':4A,5A,23,27 'insane':12C 'insaneretail':14C 'jungle':35 'negative':3A,22,26 'or':33 'remix':6A,7A,24,28 'retail':13C 'sun':9B,19 'th':31
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696763.5799284  (2021-05-22 17:19:23)
                             'size'  7113542