======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '395'
                                          'artist'  'DJ Teebee'
                                     'text_people'  ''
                                         'release'  'Black Science Labs'
                                           'title'  'Bioform'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-4', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['drum and bass', 'neurofunk', 'dnb', 'drum n bass', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '116.857'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Black Science Labs'
'TBPM' (BPM (beats per minute))                     '116.857'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Bioform'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'DJ Teebee'
'TRCK' (Track number/Position in set)               '4'
'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'                                   ['drum and bass', 'neurofunk', 'dnb', 'drum n bass', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.24 dB'
'TXXX:replaygain_track_peak'                        '0.599956'

========================== row from database ==========================
                                              'id'  1350712
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Dj Teebee/MBZ;#DJ Teebee;#Black Science Labs;#04;#Bioform.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  395
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  9484832
                                           'mtime'  1621696504
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb Dj MBZ;#DJ Teebee;#Black Labs;#04;#Bioform electronic th breakbeat dnb jungle
                                      'tag_artist'  DJ Teebee
                                     'tag_release'  Black Science Labs
                                       'tag_title'  Bioform
                                             'bpm'  116.857
                                    'search_title'  'bioform':1
                                   'search_artist'  'dj':1 'teebee':2
                                  'search_release'  'black':1 'labs':3 'science':2
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 '04':13,16 'bioform':14,17 'black':9,11 'breakbeat':20 'dj':3,5,7 'dnb':21 'electronic':18 'jungle':22 'labs':12,15 'mbz':4,6 'teebee':8,10 'th':19
                                    'search_combo'  '00dnb':8 '00poprockelectronic':7 '04':19,22 'bioform':1A,20,23 'black':4C,15,17 'breakbeat':26 'dj':2B,9,11,13 'dnb':27 'electronic':24 'jungle':28 'labs':6C,18,21 'mbz':10,12 'science':5C 'teebee':3B,14,16 'th':25
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'neurofunk', 'dnb', 'drum n bass', 'electronic']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696504.4985416  (2021-05-22 17:15:04)
                             'size'  9484832