======================== unified (from filesystem) ========================
                                         'bitrate'  '273.199'
                                        'duration'  '217'
                                          'artist'  'Liss'
                                     'text_people'  ''
                                         'release'  'First'
                                           'title'  'Miles Apart'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-3']")
                                      'lastfmtags'  "['denmark', 'indie pop', 'pop', 'soul', 'danish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '99.080'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'First'
'TBPM' (BPM (beats per minute))                     '99.080'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Miles Apart'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '217803'
'TPE1' (Lead performer(s)/Soloist(s))               'Liss'
'TPE2' (Band/orchestra/accompaniment)               'Liss'
'TRCK' (Track number/Position in set)               '03'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 64bits version 3.99.5 (http://lame.sf.net)'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['denmark', 'indie pop', 'pop', 'soul', 'danish']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.324631'

========================== row from database ==========================
                                              'id'  1346642
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Liss - Miles Apart.mp3
                                         'working'  None
                                         'bitrate'  273
                                    'duration_sec'  217
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  7440760
                                           'mtime'  1620566281
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 electronic generic or radio dance
                                      'tag_artist'  Liss
                                     'tag_release'  First
                                       'tag_title'  Miles Apart
                                             'bpm'  99.08
                                    'search_title'  'apart':2 'miles':1
                                   'search_artist'  'liss':1
                                  'search_release'  'first':1
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'dance':7 'electronic':3 'generic':4 'or':5 'radio':6
                                    'search_combo'  '00poprockelectronic':5 '2016':6 'apart':2A 'dance':11 'electronic':7 'first':4C 'generic':8 'liss':3B 'miles':1A 'or':9 'radio':10
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['denmark', 'indie pop', 'pop', 'soul', 'danish']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620566280.583152  (2021-05-09 15:18:00)
                             'size'  7440760