======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '162'
                                          'artist'  'Chuck Berry'
                                     'text_people'  ''
                                         'release'  'Legends In Music'
                                           'title'  'No Particular Place To Go'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'blues', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '131.073'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Legends In Music'
'TBPM' (BPM (beats per minute))                     '131.073'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'No Particular Place To Go'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chuck Berry'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', 'blues', 'rock', 'classic rock']
'TXXX:original release date'                        ['1989', '1989']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.584732'

========================== row from database ==========================
                                              'id'  1331002
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Chuck Berry__MBZ;#Chuck Berry;#Legends in Music;#04;#No Particular Place to Go.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  162
                                           'genre'  rock-unsorted
                                        'filesize'  2597845
                                           'mtime'  1620392310
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Berry__MBZ;#Chuck Berry;#Legends in Music;#04;#No to rock unsorted
                                      'tag_artist'  Chuck Berry
                                     'tag_release'  Legends In Music
                                       'tag_title'  No Particular Place To Go
                                             'bpm'  131.073
                                    'search_title'  'go':5 'no':1 'particular':2 'place':3 'to':4
                                   'search_artist'  'berry':2 'chuck':1
                                  'search_release'  'in':2 'legends':1 'music':3
                                     'search_rest'  '00poprockelectronic':1 '04':19,22 'berry':7,10,13,15 'chuck':9,12 'files':5,6 'in':17 'legends':14,16 'loose':3,4 'mbz':8,11 'music':18,21 'no':20,23 'rock':25 'to':24 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 '04':29,32 'berry':7B,17,20,23,25 'chuck':6B,19,22 'files':15,16 'go':5A 'in':9C,27 'legends':8C,24,26 'loose':13,14 'mbz':18,21 'music':10C,28,31 'no':1A,30,33 'particular':2A 'place':3A 'rock':35 'to':4A,34 'unsorted':12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'blues', 'rock', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392310.159965  (2021-05-07 14:58:30)
                             'size'  2597845