======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Stevie Wonder'
                                     'text_people'  ''
                                         'release'  'The Jazz Soul Of Little Stevie'
                                           'title'  'The Square'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'motown', 'soul', 'funk', 'rnb']"
                                     'discogstags'  "['funk / soul', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '128.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Jazz Soul Of Little Stevie'
'TBPM' (BPM (beats per minute))                     '128.4'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'The Square'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stevie Wonder'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'soul']
'TXXX:lastfmtags'                                   ['pop', 'motown', 'soul', 'funk', 'rnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.499825'

========================== row from database ==========================
                                              'id'  1113946
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/1962 - the jazz soul of little stevie wonder/a2 - stevie wonder - the square.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  funk or soul-funk
                                        'filesize'  2856102
                                           'mtime'  1620665577
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul 1962 the jazz soul of little stevie wonder a2 stevie wonder the square funk or soul funk
                                      'tag_artist'  Stevie Wonder
                                     'tag_release'  The Jazz Soul Of Little Stevie
                                       'tag_title'  The Square
                                             'bpm'  128.4
                                    'search_title'  'square':2 'the':1
                                   'search_artist'  'stevie':1 'wonder':2
                                  'search_release'  'jazz':2 'little':5 'of':4 'soul':3 'stevie':6 'the':1
                                     'search_rest'  '1962':4 'a2':11 'funk':2 'jazz':6 'little':8 'of':7 'or':13 'soul':3 'square':12 'stevie':9 'swing':1 'the':5 'wonder':10
                                    'search_combo'  '1962':14 'a2':21 'funk':12 'jazz':6C,16 'little':9C,18 'of':8C,17 'or':23 'soul':7C,13 'square':2A,22 'stevie':3B,10C,19 'swing':11 'the':1A,5C,15 'wonder':4B,20
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           '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-4', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'motown', 'soul', 'funk', 'rnb']
                                        'tag_date'  1962
                                     'discogstags'  ['funk / soul', 'soul']

============================== file details ==============================
                                           'mtime'  1620665577.2380776  (2021-05-10 18:52:57)
                             'size'  2856102