======================== unified (from filesystem) ========================
                                         'bitrate'  '170.992'
                                        'duration'  '410'
                                          'artist'  'German Brass'
                                     'text_people'  ''
                                         'release'  'On Tour 11 Samba de Rio'
                                           'title'  'Aquarela do Brasil, Samba de Orfeo, Tristeza, Samba de Janeiro'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'brass', 'big band', 'brass ensemble']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '111.640'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000003BC 000002A1 00006EFE'
'COMM:iTunNORM:eng'                                 (' 000003BC 000002A1 00006EFE 000037BF 0005005C 000508CC 00007654 000071F8 '
 '00014145 000508FA')
'TALB' (Album/Movie/Show title)                     'On Tour 11 Samba de Rio'
'TBPM' (BPM (beats per minute))                     '111.640'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Aquarela do Brasil, Samba de Orfeo, Tristeza, Samba de Janeiro'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'German Brass'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['german', 'brass', 'big band', 'brass ensemble']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.19 dB'
'TXXX:replaygain_track_peak'                        '0.777368'

========================== row from database ==========================
                                              'id'  1337325
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/german brass - samba de rio, aquarela do brasil, samba de orfeo, tristeza, samba de janeiro.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  410
                                           'genre'  prerock-band
                                        'filesize'  8771456
                                           'mtime'  1620562003
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] german brass samba rio, aquarela brasil, samba orfeo, tristeza, samba janeiro prerock band
                                      'tag_artist'  German Brass
                                     'tag_release'  On Tour 11 Samba de Rio
                                       'tag_title'  Aquarela do Brasil, Samba de Orfeo, Tristeza, Samba de Janeiro
                                             'bpm'  111.64
                                    'search_title'  'aquarela':1 'brasil':3,4 'de':6 'do':2 'janeiro':11 'orfeo':7,8 'samba':5 'tristeza':9,10
                                   'search_artist'  'brass':2 'german':1
                                  'search_release'  'de':4 'on':1 'rio':5 'samba':3 'tour':2
                                     'search_rest'  '00poprockelectronic':1 'aquarela':12 'band':21 'brasil':13,14 'brass':8 'files':5,6 'german':7 'janeiro':19 'loose':3,4 'orfeo':15,16 'prerock':20 'rio':10,11 'samba':9 'tristeza':17,18 'unsorted':2
                                    'search_combo'  '00poprockelectronic':19 'aquarela':1A,30 'band':39 'brasil':3A,4A,31,32 'brass':13B,26 'de':6A,17C 'do':2A 'files':23,24 'german':12B,25 'janeiro':11A,37 'loose':21,22 'on':14C 'orfeo':7A,8A,33,34 'prerock':38 'rio':18C,28,29 'samba':5A,16C,27 'tour':15C 'tristeza':9A,10A,35,36 'unsorted':20
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'brass', 'big band', 'brass ensemble']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562003.3222752  (2021-05-09 14:06:43)
                             'size'  8771456