======================== unified (from filesystem) ========================
                                         'bitrate'  '124.11'
                                        'duration'  '442'
                                          'artist'  'Terrace Martin'
                                     'text_people'  ''
                                         'release'  'Dimitri - Ful, Soul & Jazz'
                                           'title'  'Curly Martin (Feat. Robert Glasper, Thundercat and Ronald Bruner Jr.)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-JZFKS-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['hip-hop', 'jazz', 'rap', 'west coast', 'g-funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '145.4'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Ful, Soul & Jazz'
'TBPM' (BPM (beats per minute))                     '145.4'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Curly Martin (Feat. Robert Glasper, Thundercat and Ronald Bruner Jr.)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Terrace Martin'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hip-hop', 'jazz', 'rap', 'west coast', 'g-funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.02 dB'
'TXXX:replaygain_track_peak'                        '0.587220'
'TXXX:youtube'                                      'hO10m-t0jNI'

========================== row from database ==========================
                                              'id'  1477328
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FunkSoulJazz/Terrace Martin - Curly Martin (Feat. Robert Glasper, Thundercat and Ronald Bruner Jr.)-hO10m-t0jNI.mp3
                                         'working'  None
                                         'bitrate'  124
                                    'duration_sec'  442
                                           'genre'  funk or soul
                                        'filesize'  6861355
                                           'mtime'  1628357629
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FunkSoulJazz hO10m t0jNI funk or soul
                                      'tag_artist'  Terrace Martin
                                     'tag_release'  Dimitri - Ful, Soul & Jazz
                                       'tag_title'  Curly Martin (Feat. Robert Glasper, Thundercat and Ronald Bruner Jr.)
                                             'bpm'  145.4
                                    'search_title'  'and':9 'bruner':11 'curly':1 'feat':3,4 'glasper':6,7 'jr':12,13 'martin':2 'robert':5 'ronald':10 'thundercat':8
                                   'search_artist'  'martin':2 'terrace':1
                                  'search_release'  'dimitri':1 'ful':2,3 'jazz':5 'soul':4
                                     'search_rest'  'funk':4 'funksouljazz':1 'h':8 'ho10m':2 'jazz':7 'ni':11 'o10m':9 'or':5 'soul':6 't0j':10 't0jni':3
                                    'search_combo'  'and':9A 'bruner':11A 'curly':1A 'dimitri':16C 'feat':3A,4A 'ful':17C,18C 'funk':24 'funksouljazz':21 'glasper':6A,7A 'h':28 'ho10m':22 'jazz':20C,27 'jr':12A,13A 'martin':2A,15B 'ni':31 'o10m':29 'or':25 'robert':5A 'ronald':10A 'soul':19C,26 't0j':30 't0jni':23 'terrace':14B 'thundercat':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['hip-hop', 'jazz', 'rap', 'west coast', 'g-funk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357628.8115458  (2021-08-07 19:33:48)
                             'size'  6861355