======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '221'
                                          'artist'  'LMC vs. New Radicals'
                                     'text_people'  ''
                                         'release'  '100 Oldies Deel 119'
                                           'title'  "Don't Let Go"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['dance', 'remix']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '82'
                                      'tracktotal'  '100'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '125.2'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '100 Oldies Deel 119'
'TBPM' (BPM (beats per minute))                     '125.2'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2012'
'TENC' (Encoded by)                                 'Mister X'
'TIT2' (Title/songname/content description)         "Don't Let Go"
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'LMC vs. New Radicals'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '82/100'
'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'                                   ['dance', 'remix']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.490473'

========================== row from database ==========================
                                              'id'  1509288
                                            'path'  /data/Music/Bulk/00poprockelectronic/100 oldies deel 119/82 Lmc Vs. New Radicals - Don_t Let Go.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  221
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  7494650
                                           'mtime'  1621695977
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic oldies deel 82 Lmc Vs. Don_t electronic generic or radio unsorted
                                      'tag_artist'  LMC vs. New Radicals
                                     'tag_release'  100 Oldies Deel 119
                                       'tag_title'  Don't Let Go
                                             'bpm'  125.2
                                    'search_title'  'don':1 'dont':3 'go':5 'let':4 't':2
                                   'search_artist'  'lmc':1 'new':4 'radicals':5 'vs':2,3
                                  'search_release'  '100':1 '119':4 'deel':3 'oldies':2
                                     'search_rest'  '00poprockelectronic':1 '82':4 'deel':3 'don':8 'electronic':10 'generic':11 'lmc':5 'oldies':2 'or':12 'radio':13 't':9 'unsorted':14 'vs':6,7
                                    'search_combo'  '00poprockelectronic':15 '100':11C '119':14C '82':18 'deel':13C,17 'don':1A,22 'dont':3A 'electronic':24 'generic':25 'go':5A 'let':4A 'lmc':6B,19 'new':9B 'oldies':12C,16 'or':26 'radicals':10B 'radio':27 't':2A,23 'unsorted':28 'vs':7B,8B,20,21
                                    'tag_tracknum'  82
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'remix']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695976.554419  (2021-05-22 17:06:16)
                             'size'  7494650