======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'Deep Street Soul'
                                     'text_people'  ''
                                         'release'  'Meterology'
                                           'title'  "Crate Diggin' (sim. Meters)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['funk', 'soul', 'australia', 'rhythm and blues', 'australian']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '87.9'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Meterology'
'TBPM' (BPM (beats per minute))                     '87.9'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "Crate Diggin' (sim. Meters)"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Deep Street Soul'
'TRCK' (Track number/Position in set)               '4/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['funk', 'soul', 'australia', 'rhythm and blues', 'australian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-8.27 dB'
'TXXX:replaygain_track_peak'                        '0.997553'

========================== row from database ==========================
                                              'id'  1524340
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Deep Street Soul - Crate Diggin_ (sim. Meters).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  funk or soul
                                        'filesize'  4024536
                                           'mtime'  1628357813
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s Diggin_ funk or soul
                                      'tag_artist'  Deep Street Soul
                                     'tag_release'  Meterology
                                       'tag_title'  Crate Diggin' (sim. Meters)
                                             'bpm'  87.9
                                    'search_title'  'crate':1 'diggin':2,3 'meters':6,7 'sim':4,5
                                   'search_artist'  'deep':1 'soul':3 'street':2
                                  'search_release'  'meterology':1
                                     'search_rest'  '70':6 'diggin':8 'easy':4 'funk':2 'instr':5 'or':9 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':17 'crate':1A 'deep':8B 'diggin':2A,3A,19 'easy':15 'funk':13 'instr':16 'meterology':11C 'meters':6A,7A 'or':20 's':18 'sim':4A,5A 'soul':10B,14 'street':9B 'swing':12
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', 'soul', 'australia', 'rhythm and blues', 'australian']
                                        'tag_date'  1975
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1628357812.947017  (2021-08-07 19:36:52)
                             'size'  4024536